AnswersCUSD Math 01 A 5.0Evaluating Functions

Evaluating Functions Answers

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Use the function f(x) = 2x3 - 3x2 + 7 to complete the exercises. f(−1) = f(1) = f(2) =

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Selection 2:6
Selection 3:11
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3

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4

Which graph shows a function where f(2) = 4?

A
Option A
B
Option B
C
Option C
D
Option D
5

Which value completes the table?

A
–17
B
–3
C
1
D
3
6

Which statements are true of the given function? Check all that apply.

A
f = –2
Option A
B
f(0) =
Option B
C
f(1) = –1
D
f(2) = 1
E
f(4) =
Option E
7

The function p(x) = –2(x – 9)2 + 100 is used to determine the profit on T-shirts sold for x dollars. What would the profit from sales be if the price of the T-shirts were $15 apiece?

A
$15
B
$28
C
$172
D
$244
8

What is the inverse of f(x) = x + 2?

Question illustration
A
h(x) = x + 2
Option A
B
h(x) = x - 2
Option B
C
h(x) = 3x - 2
Option C
D
h(x) = 3x - 6
Option D
9

Which statements are true for the functions g(x) = x2 and h(x) = –x2 ? Check all that apply.

A
For all non-zero values of x, g(x) will always be greater than h(x).
B
For all non-zero values of x, h(x) will always be greater than g(x).
C
g(x) > h(x) for x = -1.
D
g(x) < h(x) for x = 3.
E
For positive values of x, g(x) > h(x).
F
For negative values of x, g(x) > h(x).

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Evaluating Functions Answers — CUSD Math 01 A 5.0