(4-(x+ 4) x<-1 -1sxS4.where a& are real mumber constants Cider dhe finction f(x){ax +b x>4 . Using a--1 a b- 4, sketch the graph of . Make sure you label all "jump" points and intercepts. . Using a- &-4, find: AD = 5 lim f(x). lim f(x) c. Find the values of a & b that will make f6x) continuous over its entire domain.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Would you please help me on these questions?
Practice Exam 1
Chapters 1 & 2
MATH 201
(4- (x+ 4) x<-1
-1sxs4where a &are real mumber constants
Coider the function f(x){ax +b
- Using a-l&b-4, sketch the graph of f). Make sure you label all "jump" points and intercepts.
b. Using a v1 &b m4, find:
AO = 3
lum f(x).
lim f(x)
lim f(x).
lim f(x)
c. Find the values of a & b that will make f6x) continuous over its entire domain.
6. Use f(x) =-,
to answer the following;
x+2
lim f(x)-f(a)
a. Use the difference quotient f'(a) =
to find f'(a).
X-a
b. What is the rate of change offwith respect to x when a = 3?
c. Find in slope-intercept form the equation of the line tangent to f(x) at x= 1.
d. Neatly sketch the graph fand the tangent line. Show your scale and label your axes.
7. The chart below shows the total number of gallons that have leaked out of a tank in a catch basin over a period of ten hours. The
number of gallons is a running total for the ten hours. For example, after one hour a total of 100 gallons has leaked out and after
two hours a total of 175 gallons has leaked out.
0 1
2
3.
4.
7
10
G
100
175
225
265
295
320
341
360
378
386
a. Show how to determine the average rate of the leak over the first 5 hours. (State the units.)
b. For hours 1 through 10, set up a table that shows the average rate of leakage over the previous hour. If we call this function
L(T) then L(5) is the rate of leakage from hour 4 to hour 5 and L(10) is the rate of leakage from hour 9 to hour 10.
c. Is the leak getting worse or better as time goes on? Explain your answer.
d. Use hours 4, 5 & 6 to estimate the instantaneous rate of change at T= 5. (There can be several answers.)
e. Use the answer you got in part d to find the equation of the tangent line at T= 5.
Transcribed Image Text:Practice Exam 1 Chapters 1 & 2 MATH 201 (4- (x+ 4) x<-1 -1sxs4where a &are real mumber constants Coider the function f(x){ax +b - Using a-l&b-4, sketch the graph of f). Make sure you label all "jump" points and intercepts. b. Using a v1 &b m4, find: AO = 3 lum f(x). lim f(x) lim f(x). lim f(x) c. Find the values of a & b that will make f6x) continuous over its entire domain. 6. Use f(x) =-, to answer the following; x+2 lim f(x)-f(a) a. Use the difference quotient f'(a) = to find f'(a). X-a b. What is the rate of change offwith respect to x when a = 3? c. Find in slope-intercept form the equation of the line tangent to f(x) at x= 1. d. Neatly sketch the graph fand the tangent line. Show your scale and label your axes. 7. The chart below shows the total number of gallons that have leaked out of a tank in a catch basin over a period of ten hours. The number of gallons is a running total for the ten hours. For example, after one hour a total of 100 gallons has leaked out and after two hours a total of 175 gallons has leaked out. 0 1 2 3. 4. 7 10 G 100 175 225 265 295 320 341 360 378 386 a. Show how to determine the average rate of the leak over the first 5 hours. (State the units.) b. For hours 1 through 10, set up a table that shows the average rate of leakage over the previous hour. If we call this function L(T) then L(5) is the rate of leakage from hour 4 to hour 5 and L(10) is the rate of leakage from hour 9 to hour 10. c. Is the leak getting worse or better as time goes on? Explain your answer. d. Use hours 4, 5 & 6 to estimate the instantaneous rate of change at T= 5. (There can be several answers.) e. Use the answer you got in part d to find the equation of the tangent line at T= 5.
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