AnswersFL-1200710-Mathematics for College Algebra ALinear Programming

Linear Programming — Unit test Answers

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1
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A piecewise function is represented by the graph below.

Question illustration
A
x < –1
B
–1 ≤ x ≤ 1
C
1 ≤ x < 2
D
x > 1
2
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The graph of a function is shown.

Question illustration
A
f(x) =
Option A
B
f(x) =
Option B
C
f(x) =
Option C
D
f(x) =
Option D
4

The function f(x) is to be graphed on a coordinate plane.f(x) = At what point should an open circle be drawn?

Question illustration
A
(–1, 0)
B
(0, 0)
C
(0, 1)
D
(1, 0)
5

Which times and distances are represented by the function? Select three options.

A
The starting distance, at 0 hours, is 300 miles.
B
At 2 hours, the traveler is 725 miles from home.
C
At 2.5 hours, the traveler is still moving farther from home.
D
At 3 hours, the distance is constant, at 875 miles.
E
The total distance from home after 6 hours is 1,062.5 miles.
6

The graph of the piecewise function f(x) is shown.

Question illustration
A
{x | −2 ≤ x < 4}
B
{x | −2 < x ≤ 4}
C
{y | −5 < y < −1}
D
{y | −5 ≤ y ≤ −1}
7

The graph of the piecewise function f(x) is shown.

Question illustration
A
{x | 1 < x < 5}
B
{x | 1 < x < 5}
C
{y | −4 < y < 1}
D
{y | −4 < y < 1}
8

The piecewise function f(x) has opposite expressions.f(x) = Which is the graph of f(x)?

Question illustration
A
Option
B
Option
C
Option
D
Option
9

Which value is in the domain of f(x)?f(x) =

Question illustration
A
–7
B
–6
C
4
D
5
10

The piecewise function h(x) is shown on the graph.

Question illustration
A
−7
B
−1
C
0
D
2
11

The function h(x) is defined as shown.h(x) =

Question illustration
A
–∞ < h(x) < ∞
B
h(x) ≤ 5
C
h(x) ≥ 5
D
h(x) ≥ 3
12

Brenton’s weekly pay, P(h) , in dollars, is a function of the number of hours he works, h. He gets paid $20 per hour for the first 40 hours he works in a week. For any hours above that, he is paid overtime at $30 per hour. He is not permitted to work more than 60 hours in a week.

A
{h| 0 ≤ h ≤ 40}
B
{h| 0 ≤ h ≤ 60}
C
{P(h)| 0 ≤ P(h) ≤ 1,400}
D
{P(h)| 0 ≤ P(h) ≤ 1,800}
13

The piecewise function h(x) is shown on the graph.

Question illustration
A
–2
B
–1
C
1
D
2
14

Which functions represent a piece of the function? Select three options.

A
g(x) = −2x, −2 < x < 0
B
g(x) = −2, x < −2
C
g(x) = x − 2, −2 < x < 1
D
g(x) = −2x + 6, x ≥ 1
E
g(x) = + 1, –2 ≤ x < 1
Option E
15

The graph of the piecewise function f(x) is shown.

Question illustration
A
{f(x)| –∞ <f(x) < ∞}
B
{f(x)| –∞ <f(x) ≤ 4}
C
{f(x)|4<f(x)<∞}
D
{f(x)|0≤f(x)<∞}
16

A piecewise function is defined as shown.

Question illustration
A
−3
B
−2
C
1
D
4
17

The piecewise function h(x) is shown on the graph.

Question illustration
A
−2
B
−1
C
0
D
3
18

The function g(x) is defined as shown.

Question illustration
A
2
B
3
C
9
D
14
19

A gym offers three levels of membership based on the number of visits per month, as represented by the table.Kaleigh wants to know how much she will pay for her gym membership. Which graph represents the total monthly cost at the gym as a function of the number of visits Kaleigh plans to make each month?

Question illustration
A
Option
B
Option
C
Option
D
Option
20

A piecewise function f(x) is defined as shown.f(x) = Which table could be used to graph a piece of the function?

Question illustration
A
Option
B
Option
C
Option
D
Option

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