Unit 2 Part 2 TEST: Graphs and Functions Answers

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41
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Which graph represents the following piecewise defined function?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
42
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A store offers discounts on lunch-size chip bags when buying larger quantities. The graph below represents the total cost, in dollars, for the number of bags purchased. What is the difference in the price per bag for 150 bags versus 50 bags?

Question illustration
A
$0.18 per bag
B
$0.17 per bag
C
$0.15 per bag
D
$0.05 per bag
43

Which graph represents the following piecewise defined function?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
44

Which of the following is the parent function of all absolute value functions?

A
f(x) = 3x
B
f(x) = |x|
C
f(x) = 2|x|
D
Option
Option D
45

A local screen-printing company sells T-shirts at various prices, in dollars, depending upon how many T-shirts are bought at the time. The piecewise function below represents their pricing structure, where n is the number of T-shirts purchased. The school volleyball team purchased 20 shirts. How much did the volleyball team spend on shirts?

Question illustration
A
$480
B
$180
C
$220
D
$260
46

Which statement is true about f(x) = –6|x + 5| – 2?

A
The graph of f(x) is a horizontal compression of the graph of the parent function.
B
The graph of f(x) is a horizontal stretch of the graph of the parent function.
C
The graph of f(x) opens upward.
D
The graph of f(x) opens to the right.
47

What is the domain of the absolute value function below?

Question illustration
A
x –4
Option A
B
x 2
Option B
C
Option
Option C
D
Option
Option D
48

The graph below shows the altitude, in feet, of a model rocket t seconds after launch. During this time, the rocket experiences three distinct modes of flight. Initially, the engine accelerates the rocket upward. The rocket then coasts upward, is slowed by gravity, and eventually begins to fall. Last, a parachute opens and the rocket drifts smoothly back to the ground. When was the model rocket 600 feet above the ground?

Question illustration
A
4.5 seconds
B
7 seconds
C
7 and 9.5 seconds
D
4.5 and 12 seconds
49

What is the domain of the function graphed below?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
all real numbers
50

Which function has a vertex at (2, 6)?

A
f(x) = 2|x – 2| – 6
B
f(x) = 2|x – 2| + 6
C
f(x) = 2|x + 2| + 6
D
f(x) = 2|x + 2| – 6

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