Single Variable Calculus: Concepts and Contexts, Enhanced Edition
Single Variable Calculus: Concepts and Contexts, Enhanced Edition
4th Edition
ISBN: 9781337687805
Author: James Stewart
Publisher: Cengage Learning
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Chapter B, Problem 28E
To determine

To calculate: To find the slope and y-intercept of the line and then draw its graph

Expert Solution & Answer
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Answer to Problem 28E

Slope of line is 45 and y-intercept of line is 2

Explanation of Solution

Given information: Equation is 4x+5y=10

Formula Used:

Slope intercept form of line is

  y=mx+c

Where,

  m= Slope

  c= y-intercept

Calculation:

Equation of line is given as follows:

  4x+5y=10

Rewriting the equation as follows:

  5y=4x+10y=45x+105y=45x+2

Comparing the above equation with slope-intercept form of line y=mx+c ,

  m=45c=2

Finding the points that lie on equation:

When x=0

  y=45(0)+2y=2

When x=5

  y=45(5)+2y=4+2y=2

When x=10

  y=45(10)+2y=8+2y=6

Thus, (0,2),(5,2),(10,6) are the solution of equation and must lie on the equation.

Plotting the points on graph,

  y-axis

  Single Variable Calculus: Concepts and Contexts, Enhanced Edition, Chapter B, Problem 28E   x-axis

Conclusion:

Hence, slope of line 45 and y-intercept of line is 2

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