These review exercises are for test preparation. They can also serve as a practice test. Answers are at the back of the book Red bracketed section references indicate the part(s) of the chapter to restudy if your answer is incorrect Concept Reinforcement For each equation in column A, select the most appropriate graph in column B. [R.1, R.4, R.5] Column A Column B y = | x |
These review exercises are for test preparation. They can also serve as a practice test. Answers are at the back of the book Red bracketed section references indicate the part(s) of the chapter to restudy if your answer is incorrect Concept Reinforcement For each equation in column A, select the most appropriate graph in column B. [R.1, R.4, R.5] Column A Column B y = | x |
These review exercises are for test preparation. They can also serve as a practice test. Answers are at the back of the book Red bracketed section references indicate the part(s) of the chapter to restudy if your answer is incorrect
Concept Reinforcement
For each equation in column A, select the most appropriate graph in column B. [R.1, R.4, R.5]
Column A
Column B
y
=
|
x
|
Expert Solution & Answer
To determine
The correct match for the graph of the function y=|x| from column B.
Answer to Problem 1RE
Solution:
The correct match for the graph of the function y=|x| from column B is (d).
Explanation of Solution
Given information:
The graphs provided in Column B:
Consider the function,
y=|x|
The modulus function is defined as
f(x)=|x|={x,x≥0−x,x<0
Now, the table for ordered pair (x,y) for the function f(x)=|x| is shown below:
x
f(x)
0
0
1
1
2
2
-1
1
-2
2
So, the resulting graph is,
Hence, the correct match is part (d).
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Let f be a function whose graph consists of 5 line segments and a semicircle as shown in the figure below.
Let g(x) = √ƒƒ(t) dt .
0
3
2
-2
2
4
5
6
7
8
9
10
11
12
13
14
15
1. g(0) =
2. g(2) =
3. g(4) =
4. g(6) =
5. g'(3) =
6. g'(13)=
The expression 3 | (3+1/+1)
of the following integrals?
A
Ов
E
+
+
+ +
18
3+1+1
3++1
3++1
(A) √2×14 dx
x+1
(C) 1½-½√ √ ² ( 14 ) d x
(B) √31dx
(D) So 3+x
-dx
is a Riemann sum approximation of which
5
(E) 1½√√3dx
2x+1
2. Suppose the population of Wakanda t years after 2000 is given by the equation
f(t) = 45000(1.006). If this trend continues, in what year will the population reach 50,000
people? Show all your work, round your answer to two decimal places, and include units. (4
points)
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