Precalculus (10th Edition)
Precalculus (10th Edition)
10th Edition
ISBN: 9780321979070
Author: Michael Sullivan
Publisher: PEARSON
bartleby

Concept explainers

Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
bartleby

Videos

Textbook Question
Book Icon
Chapter 3.5, Problem 21AYU

6 ( x 2   −  1 )  > 5 x

Expert Solution & Answer
Check Mark

Want to see the full answer?

Check out a sample textbook solution
Blurred answer
Previous
Chapter 3.5, Problem 20AYU
Next
Chapter 3.5, Problem 22AYU
Students have asked these similar questions
#3 Find the derivative y' = of the following functions, using the derivative rules: dx a) y-Cos 6x b) y=x-Sin4x c) y=x-Cos3x d) y=x-R CD-X:-:TCH :D:D:D - Sin f) Sin(x²) (9) Tan (x³)
mate hat is the largest area that can be en 18 For the function y=x³-3x² - 1, use derivatives to: (a) determine the intervals of increase and decrease. (b) determine the local (relative) maxima and minima. (c) determine the intervals of concavity. (d) determine the points of inflection. b) (e) sketch the graph with the above information indicated on the graph.
use L'Hopital Rule to evaluate the following. a) 4x3 +10x2 23009׳-9 943-9 b) hm 3-84 хто бу+2 < xan x-30650)

Chapter 3 Solutions

Precalculus (10th Edition)

Ch. 3.1 - Graph y=x21Ch. 3.1 - Find the slope of the line joining the points (...Ch. 3.1 - Prob. 3AYUCh. 3.1 - Solve: 6x900=15x+2850 . (pp. A44-A46)Ch. 3.1 - Prob. 5AYUCh. 3.1 - Prob. 6AYUCh. 3.1 - For the graph of the linear function f( x )=mx+b ,...Ch. 3.1 - If the slope m of the graph of a linear function...Ch. 3.1 - True or False The slope of a nonvertical line is...Ch. 3.1 - True or False The average rate of change of f( x...
Ch. 3.1 - What is the only type of function that has a...Ch. 3.1 - A car has 12,500 miles on its odometer. Say the...Ch. 3.1 - In Problems 13-20, a linear function is given. a....Ch. 3.1 - In Problems 13-20, a linear function is given. a....Ch. 3.1 - In Problems 13-20, a linear function is given. a....Ch. 3.1 - In Problems 13-20, a linear function is given. a....Ch. 3.1 - In Problems 13-20, a linear function is given. a....Ch. 3.1 - In Problems 13-20, a linear function is given. a....Ch. 3.1 - In Problems 13-20, a linear function is given. a....Ch. 3.1 - In Problems 13-20, a linear function is given. a....Ch. 3.1 - In Problems 21-28, determine whether the given...Ch. 3.1 - In Problems 21-28, determine whether the given...Ch. 3.1 - In Problems 21-28, determine whether the given...Ch. 3.1 - In Problems 21-28, determine whether the given...Ch. 3.1 - In Problems 21-28, determine whether the given...Ch. 3.1 - In Problems 21-28, determine whether the given...Ch. 3.1 - In Problems 21-28, determine whether the given...Ch. 3.1 - In Problems 21-28, determine whether the given...Ch. 3.1 - Suppose that f( x )=4x1 and g(x)=2x+5 . a. Solve...Ch. 3.1 - Suppose that f( x )=3x+5 and g(x)=2x+15 . a. Solve...Ch. 3.1 - In parts (a) - (f), use the following figure. a....Ch. 3.1 - In parts (a) - (f), use the following figure. a....Ch. 3.1 - In parts (a) and (b), use the following figure. a....Ch. 3.1 - In parts (a) and (b), use the following figure. a....Ch. 3.1 - In parts (a) and (b), use the following figure. a....Ch. 3.1 - In parts (a) and (b), use the following figure. a....Ch. 3.1 - Prob. 37AYUCh. 3.1 - Phone Charges The monthly cost in dollars, for...Ch. 3.1 - Supply and Demand Suppose that the quantity...Ch. 3.1 - Supply and Demand Suppose that the quantity...Ch. 3.1 - Taxes The functionrepresents the tax bill of a...Ch. 3.1 - Luxury Tax In 2011, major league baseball signed a...Ch. 3.1 - The point at which a company’s profits equal...Ch. 3.1 - The point at which a company’s profits equal...Ch. 3.1 - Straight-line Depreciation Suppose that a company...Ch. 3.1 - Straight-line Depreciation Suppose that a company...Ch. 3.1 - Cost Function The simplest cost function is the...Ch. 3.1 - Cost function Refer to problem 49. Suppose that...Ch. 3.1 - Prob. 49AYUCh. 3.1 - International Call Plan A cell phone company...Ch. 3.1 - Prob. 51AYUCh. 3.1 - Developing a Linear Model from Data The following...Ch. 3.1 - Which of the following functions might have the...Ch. 3.1 - Which of the following functions might have the...Ch. 3.1 - Under what circumstances is a linear function f( x...Ch. 3.1 - Explain how the graph of f( x )=mx+b can be used...Ch. 3.1 - Problems 57-60 are based on material teamed...Ch. 3.1 - Problems 57-60 are based on material teamed...Ch. 3.1 - Problems 57-60 are based on material teamed...Ch. 3.1 - Problems 57-60 are based on material teamed...Ch. 3.2 - Plot the points ( 1,5 ),( 2,6 ),( 3,9 ),( 1,12 )...Ch. 3.2 - Find an equation of the line containing the points...Ch. 3.2 - A _____________ is used to help us to see what...Ch. 3.2 - True or False The correlation coefficient is a...Ch. 3.2 - In Problems 5-10, examine the scatter diagram and...Ch. 3.2 - In Problems 5-10, examine the scatter diagram and...Ch. 3.2 - In Problems 5-10, examine the scatter diagram and...Ch. 3.2 - In Problems 5-10, examine the scatter diagram and...Ch. 3.2 - In Problems 5-10, examine the scatter diagram and...Ch. 3.2 - In Problems 5-10, examine the scatter diagram and...Ch. 3.2 - In Problems 11-16, (a) Draw a scatter diagram. (b)...Ch. 3.2 - In Problems 11-16, (a) Draw a scatter diagram. (b)...Ch. 3.2 - In Problems 11-16, (a) Draw a scatter diagram. (b)...Ch. 3.2 - In Problems 11-16, (a) Draw a scatter diagram. (b)...Ch. 3.2 - In Problems 11-16, (a) Draw a scatter diagram. (b)...Ch. 3.2 - In Problems 11-16, (a) Draw a scatter diagram. (b)...Ch. 3.2 - Candy The following data represent the weight (in...Ch. 3.2 - Prob. 18AYUCh. 3.2 - Video Games and Grade-Point Average Professor...Ch. 3.2 - Prob. 20AYUCh. 3.2 - Flight Time and Ticket Price The following data...Ch. 3.2 - Material Age versus Down Syndrome A biologist...Ch. 3.2 - Fine the line of the best fit for order pairs...Ch. 3.2 - What does a correlation coefficient of 0 imply?Ch. 3.2 - Explain why it does not make sense to interpret...Ch. 3.2 - Refer to Problem 19. Solve G( h )=0 . Provide an...Ch. 3.2 - Find an equation for the line containing the...Ch. 3.2 - Find the domain of f( x )= x1 x 2 25 .Ch. 3.2 - For f(x)=5x8 and g(x)= x 2 3x+4 , find (gf)(x) .Ch. 3.2 - Write the function whose graph is the graph of y=...Ch. 3.3 - List the intercepts of the equation y= x 2 9 ....Ch. 3.3 - Prob. 2AYUCh. 3.3 - To complete the square of x 2 5x , you add the...Ch. 3.3 - To graph y= (x4) 2 you shift the graph of y= x 2...Ch. 3.3 - The graph of a quadratic function is called a(n)...Ch. 3.3 - The vertical line passing through the vertex of a...Ch. 3.3 - The x-coordinate of the vertex of f( x )=a x 2...Ch. 3.3 - True or False The graph of f( x )=2 x 2 +3x4 opens...Ch. 3.3 - True or False The y-coordinate of the vertex of f(...Ch. 3.3 - True or False If the discriminant b 2 4ac=0 , the...Ch. 3.3 - If b 2 4ac0 , which of the following conclusions...Ch. 3.3 - If the graph of f( x )=a x 2 +bx+c,a0 , has a...Ch. 3.3 - In Problems 13-20, match each graph to one the...Ch. 3.3 - In Problems 13-20, match each graph to one the...Ch. 3.3 - In Problems 13-20, match each graph to one the...Ch. 3.3 - In Problems 13-20, match each graph to one the...Ch. 3.3 - In Problems 13-20, match each graph to one the...Ch. 3.3 - In Problems 13-20, match each graph to one the...Ch. 3.3 - In Problems 13-20, match each graph to one the...Ch. 3.3 - In Problems 13-20, match each graph to one the...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 21-32, graph the function f by...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 33-48, (a) graph each quadratic...Ch. 3.3 - In Problems 49-54, determine the quadratic...Ch. 3.3 - In Problems 49-54, determine the quadratic...Ch. 3.3 - In Problems 49-54, determine the quadratic...Ch. 3.3 - In Problems 49-54, determine the quadratic...Ch. 3.3 - In Problems 49-54, determine the quadratic...Ch. 3.3 - In Problems 49-54, determine the quadratic...Ch. 3.3 - Prob. 55AYUCh. 3.3 - In Problems 55-62, determine, without graphing,...Ch. 3.3 - In Problems 55-62, determine, without graphing,...Ch. 3.3 - In Problems 55-62, determine, without graphing,...Ch. 3.3 - Prob. 59AYUCh. 3.3 - In Problems 55-62, determine, without graphing,...Ch. 3.3 - Prob. 61AYUCh. 3.3 - Prob. 62AYUCh. 3.3 - In problem, graph each function.Determine the...Ch. 3.3 - In problem, graph each function.Determine the...Ch. 3.3 - In problem, graph each function.Determine the...Ch. 3.3 - In problem 6370, (a) graph each function. (b)...Ch. 3.3 - In problem 6370, (a) graph each function. (b)...Ch. 3.3 - In problem 6370, (a) graph each function. (b)...Ch. 3.3 - In problem 6370, (a) graph each function. (b)...Ch. 3.3 - In problem, graph each function.Determine the...Ch. 3.3 - The graph of the function f( x )=a x 2 +bx+c has...Ch. 3.3 - The graph of the function f(x)=a x 2 +bx+c has...Ch. 3.3 - In Problems 77-82, for the given functions fandg ,...Ch. 3.3 - In Problems 77-82, for the given functions fandg ,...Ch. 3.3 - In Problems 77-82, for the given functions fandg ,...Ch. 3.3 - In Problems 77-82, for the given functions fandg ,...Ch. 3.3 - In Problems 77-82, for the given functions fandg ,...Ch. 3.3 - In Problems 77-82, for the given functions fandg ,...Ch. 3.3 - Answer Problems 83 and 84 using the following: A...Ch. 3.3 - Answer Problems 83 and 84 using the following: A...Ch. 3.3 - Suppose that f(x)= x 2 +4x21 . (a) What is the...Ch. 3.3 - Suppose that f( x )= x 2 +2x8 . (a) What is the...Ch. 3.3 - Prob. 83AYUCh. 3.3 - Prob. 84AYUCh. 3.3 - Maximizing Revenue Suppose that the manufacturer...Ch. 3.3 - Prob. 86AYUCh. 3.3 - Minimizing Marginal Cost The marginal cost of a...Ch. 3.3 - Minimizing Marginal Cost (See Problem 91.) The...Ch. 3.3 - Business The monthly revenue R achieved by selling...Ch. 3.3 - Business The daily revenue R achieved by selling x...Ch. 3.3 - Stopping Distance An accepted relationship between...Ch. 3.3 - Prob. 92AYUCh. 3.3 - Prob. 93AYUCh. 3.3 - Make up a quadratic function that opens down and...Ch. 3.3 - Prob. 95AYUCh. 3.3 - Prob. 96AYUCh. 3.3 - Prob. 97AYUCh. 3.3 - Prob. 98AYUCh. 3.3 - Prob. 99AYUCh. 3.3 - What are the possibilities for the number of times...Ch. 3.3 - Prob. 101AYUCh. 3.3 - Prob. 102AYUCh. 3.3 - Prob. 103AYUCh. 3.3 - Prob. 104AYUCh. 3.4 - Translate the following sentence into a...Ch. 3.4 - Prob. 2AYUCh. 3.4 - Prob. 3AYUCh. 3.4 - Prob. 4AYUCh. 3.4 - Prob. 5AYUCh. 3.4 - Prob. 6AYUCh. 3.4 - Enclosing a Rectangular Field David has 400 yards...Ch. 3.4 - Enclosing a Rectangular Field Beth has 3000 feet...Ch. 3.4 - Enclosing a Rectangular Field with a Fence A...Ch. 3.4 - Enclosing a Rectangular Field with a Fence A...Ch. 3.4 - Analyzing the motion of a Projectile A projectile...Ch. 3.4 - Analyzing the motion of a Projectile A projectile...Ch. 3.4 - Suspension Bridge A suspension bridge with weight...Ch. 3.4 - Architecture A parabolic arch has a span of 120...Ch. 3.4 - Constructing Rain Gutters A rain gutter is to be...Ch. 3.4 - Norman Windows A Norman window has the shape of a...Ch. 3.4 - Constructing a Stadium A track-and-field playing...Ch. 3.4 - Architecture A special window has the shape of a...Ch. 3.4 - Height of a Rail A shot-putter throws a hall at an...Ch. 3.4 - Prob. 20AYUCh. 3.4 - Prob. 21AYUCh. 3.4 - Prob. 22AYUCh. 3.4 - Prob. 23AYUCh. 3.4 - Prob. 24AYUCh. 3.4 - Life Cycle Hypothesis An individual’s income...Ch. 3.4 - Prob. 27AYUCh. 3.4 - Which Model? An engineer collects the following...Ch. 3.4 - Which Model? The following data represent the...Ch. 3.4 - Which Model? A cricket makes a chirping noise by...Ch. 3.4 - Prob. 31AYUCh. 3.4 - Prob. 32AYUCh. 3.4 - Prob. 33AYUCh. 3.4 - Prob. 34AYUCh. 3.4 - Prob. 35AYUCh. 3.5 - Solve the inequality 3x27 .Ch. 3.5 - Write (2,7] using inequality notation.Ch. 3.5 - (a) f( x )0 (b) f( x )0Ch. 3.5 - (a) g( x )0 (b) g( x )0Ch. 3.5 - (a) g( x )f( x ) (b) f( x )g( x )Ch. 3.5 - (a) f( x )g( x ) (b) f( x )g( x )Ch. 3.5 - x 2 3x100Ch. 3.5 - x 2 +3x100Ch. 3.5 - x 2 4x0Ch. 3.5 - x 2 +8x0Ch. 3.5 - x 2 90Ch. 3.5 - x 2 10Ch. 3.5 - x 2 +x12Ch. 3.5 - x 2 +7x12Ch. 3.5 - 2 x 2 5x+3Ch. 3.5 - 6 x 2 6+5xCh. 3.5 - x 2 x+10Ch. 3.5 - x 2 +2x+40Ch. 3.5 - 4 x 2 +96xCh. 3.5 - 25 x 2 +1640xCh. 3.5 - 6( x 2 1 )5xCh. 3.5 - 2( 2 x 2 3x )9Ch. 3.5 - Prob. 23AYUCh. 3.5 - Prob. 24AYUCh. 3.5 - In Problems 2432, use the given functions f and g....Ch. 3.5 - Prob. 26AYUCh. 3.5 - Prob. 27AYUCh. 3.5 - Prob. 28AYUCh. 3.5 - Prob. 29AYUCh. 3.5 - Prob. 30AYUCh. 3.5 - Prob. 31AYUCh. 3.5 - Prob. 32AYUCh. 3.5 - Physics A ball is thrown vertically upward with an...Ch. 3.5 - Physics A ball is thrown vertically upward with an...Ch. 3.5 - Revenue Suppose that the manufacturer of a gas...Ch. 3.5 - Revenue The John Deere company has found that the...Ch. 3.5 - Artillery A projectile Fired from the point ( 0,0...Ch. 3.5 - Runaway Car Using Hooke's Law, we can show that...Ch. 3.5 - Show that the inequality ( x4 ) 2 0 has exactly...Ch. 3.5 - Show that the inequality ( x2 ) 2 0 has one real...Ch. 3.5 - Explain why the inequality x 2 +x+10 has all real...Ch. 3.5 - Explain why the inequality x 2 x+10 has the empty...Ch. 3.5 - Explain the circumstances under which the...Ch. 3.5 - Determine the domain of f( x )= 102x .Ch. 3.5 - Consider the linear function f( x )= 2 3 x6 . (a)...Ch. 3.5 - Determine algebraically whether f( x )= x x 2 +9...Ch. 3.5 - Prob. 47AYUCh. 3 - In Problems 1-3: (a) Determine the slope and...Ch. 3 - In Problems: Find the slope and-intercept of each...Ch. 3 - In Problems 1-3: (a) Determine the slope and...Ch. 3 - In Problems 4 and 5, determine whether the...Ch. 3 - In Problems 4 and 5, determine whether the...Ch. 3 - In Problems, graph each quadratic function using...Ch. 3 - In Problems 6-8, graph each quadratic function...Ch. 3 - In Problems, graph each quadratic function using...Ch. 3 - In Problems 6-8, graph each quadratic function...Ch. 3 - In Problems 913, (a) graph each quadratic function...Ch. 3 - In Problems 9-14, (a) graph each quadratic...Ch. 3 - In Problems 913, (a) graph each quadratic function...Ch. 3 - In Problems 9-14, (a) graph each quadratic...Ch. 3 - In Problems 15-17, determine whether the given...Ch. 3 - In Problems 15-17, determine whether the given...Ch. 3 - In Problems, determine whether the given quadratic...Ch. 3 - In Problems 18-19, solve each quadratic...Ch. 3 - In Problems 18-19, solve each quadratic...Ch. 3 - In Problems 19 and 20, find the quadratic function...Ch. 3 - 20. In Problems 20 and 21, find the quadratic...Ch. 3 - 22. Sales Commissions Bill has just been offered a...Ch. 3 - Prob. 22RECh. 3 - Landscaping A landscape engineer has 200 feet of...Ch. 3 - 24. Enclosing the Most Area with a Fence A farmer...Ch. 3 - Architecture A special window in the shape of a...Ch. 3 - 25. Minimizing Marginal Cost Callaway Golf Company...Ch. 3 - 26. Maximizing Area A rectangle has one vertex on...Ch. 3 - 27. Parabolic Arch Bridge A horizontal bridge is...Ch. 3 - 28. Bono Length Research performed at NASA, led by...Ch. 3 - 29. Advertising A small manufacturing firm...Ch. 3 - For the linear function f( x )=4x+3 , a. Find the...Ch. 3 - In Problems 2 and 3, find the intercepts, if any,...Ch. 3 - In Problemsand, find the intercepts, if any, of...Ch. 3 - Prob. 4CTCh. 3 - Graph f(x)= (x3) 2 2 using transformations.Ch. 3 - Consider the quadratic function Is the graph...Ch. 3 - Determine whether f( x )=-2 x 2 +12x+3 has a...Ch. 3 - Solve, x 2 10x+240 .Ch. 3 - The weekly rental cost of a 20-foot recreational...Ch. 3 - Find the distance between the points P=( 1,3 ) and...Ch. 3 - Prob. 2CRCh. 3 - Solve the inequality 5x+30 and graph the solution...Ch. 3 - Find the equation of the line containing the...Ch. 3 - Find the equation of the line perpendicular to the...Ch. 3 - Graph the equation x 2 + y 2 4x+8y5=0 .Ch. 3 - Does the following relation represent a function?...Ch. 3 - For the function f defined by f( x )= x 2 4x+1 ,...Ch. 3 - Find the domain of h(z)= 3z1 6z7 .Ch. 3 - Is the following graph the graph of a function?Ch. 3 - Consider the function f(x)= x x+4 . a. Is the...Ch. 3 - Is the function f(x)= x 2 2x+1 even, odd, or...Ch. 3 - Approximate the local maximum values and local...Ch. 3 - If f(x)=3x+5 and g(x)=2x+1 , a. Solve f(x)=g( x )...Ch. 3 - For the graph of the function f , a. Find the...

Additional Math Textbook Solutions

Find more solutions based on key concepts
Critical Values. In Exercises 21–24, refer to the information in the given exercise and do the following. a. Fi...

Elementary Statistics (13th Edition)

Identify the inflection points and local maxima and minima of the functions graphed in Exercises 1–8. Identify ...

University Calculus: Early Transcendentals (4th Edition)

1. How many solutions are there to ax + b = 0 with ?

College Algebra with Modeling & Visualization (5th Edition)

Females’ Pulse Rates before and after a Fright (Example 17) In a statistics class taught by one of the authors,...

Introductory Statistics

In Exercises 5-36, express all probabilities as fractions. 23. Combination Lock The typical combination lock us...

Elementary Statistics

The following set of data is from sample of n=5: a. Compute the mean, median, and mode. b. Compute the range, v...

Basic Business Statistics, Student Value Edition

Knowledge Booster
Background pattern image
Calculus
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Elementary Algebra
Algebra
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:OpenStax - Rice University
Text book image
College Algebra
Algebra
ISBN:9781337282291
Author:Ron Larson
Publisher:Cengage Learning
Text book image
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
Text book image
College Algebra
Algebra
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Text book image
Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt
Text book image
Trigonometry (MindTap Course List)
Trigonometry
ISBN:9781337278461
Author:Ron Larson
Publisher:Cengage Learning
SEE MORE TEXTBOOKS
What is a Linear Equation in One Variable?; Author: Don't Memorise;https://www.youtube.com/watch?v=lDOYdBgtnjY;License: Standard YouTube License, CC-BY
Linear Equation | Solving Linear Equations | What is Linear Equation in one variable ?; Author: Najam Academy;https://www.youtube.com/watch?v=tHm3X_Ta_iE;License: Standard YouTube License, CC-BY