Mathematics
Mathematics, 03.12.2020 19:20, naomiedgrey

Please Help! The function ฦ’(x) = is reflected across the x-axis and vertically stretched by a factor of 2. Select the correct graph for the resulting function.
Question 1 options:

A)

image

B)

image

C)

image

D)

image
Question 2 (5 points)
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The table shows the cost of some apples. Which function ฦ’(x) is represented in the table?
Question 2 options:

A)

ฦ’(x) = 2x + 2

B)

ฦ’(x) = 0.5x

C)

ฦ’(x) = 0.5x + 2

D)

ฦ’(x) = 2x
Question 3 (5 points)
Use a table of values to graph the function ฦ’(x) = โ€“3|x|. Select the correct graph below.
Question 3 options:

A)

image

B)

image

C)

image

D)

image
Question 4 (5 points)
Which expression is equivalent to 9x โ€“ 3y โ€“ 5x + 7y + x + y?
Question 4 options:

A)

10xy

B)

5x + 5y

C)

4x + 4y

D)

5x2 + 4y2
Question 5 (5 points)
Select the relationship that does represent a function.
Question 5 options:

A)

image

B)

image

C)

image

D)

image
Question 6 (5 points)
Use a table of values to graph the function ฦ’(x) = xโˆ’โˆ’โˆš. Choose the correct graph from the options below.

Question 6 options:

A)

image

B)

image

C)

image

D)

image
Question 7 (5 points)
Saved
image

The table shows the miles and total cost of renting a moped. Which function ฦ’(x) is represented in the table?
Question 7 options:

A)

ฦ’(x) = 0.5x + 10

B)

ฦ’(x) = 0.4x + 12

C)

ฦ’(x) = 5x โ€“ 10

D)

ฦ’(x) = x + 8
Question 8 (5 points)
Select the only true statement below.
Question 8 options:

A)

The graph of an odd function is symmetric with respect to the y-axis.

B)

The graph of an even function is symmetric with respect to the y-axis.

C)

The graph of an odd function is symmetric with respect to the x-axis.

D)

The graph of an even function is symmetric with respect to the x-axis.
Question 9 (5 points)
Mary is selling chocolate bars to raise money. She earns $3 for each solid milk chocolate bar sold and $4 for each caramel-filled bar sold. If m represents the number of milk chocolate bars sold, and c represents the number of caramel bars sold, which of the following expressions represents the amount of money that Mary has raised?
Question 9 options:

A)

3m โ€“ 4c

B)

mโˆ•3 + iโˆ•4

C)

3m + 4c

D)

12mc
Question 10 (5 points)
image

Describe the transformation that takes place on the graph of ฦ’(x) = xโˆ’โˆ’โˆš3 to create the graph above.

Question 10 options:

A)

The graph is translated 2 units in the positive x-direction.

B)

The graph is vertically shrunk by a factor of ยฝ.

C)

The graph is reflected across the y-axis.

D)

The graph is reflected across the x-axis.
Question 11 (5 points)
Which of the following ordered pairs is a solution of the function ฦ’(x) = 3x โ€“ 1?
Question 11 options:

A)

(โ€“1, โ€“4)

B)

(โ€“1, 2)

C)

(โ€“1, 4)

D)

(โ€“1, โ€“3)
Question 12 (5 points)
What's the slope and y-intercept of the graph of 7x + y = 8?
Question 12 options:

A)

Slope = โ€“7, y-intercept = โ€“8

B)

Slope = โ€“8, y-intercept = 7

C)

Slope = 7, y-intercept = 8

D)

Slope = โ€“7, y-intercept = 8
Question 13 (5 points)
image

Complete the table for the function y = xโˆ’โˆ’โˆš3 + 7.

Question 13 options:

A)

โ€“5, โ€“6, โ€“8, โ€“9

B)

9, 8, 6, 5

C)

5, 6, 8, 9

D)

โ€“9, โ€“8, โ€“6, โ€“5
Question 14 (5 points)
Saved
Martina rents a room in her home to guests. She charges a $25 flat fee per night for one person. Additional guests are welcome to stay, but she charges $10 per person. She expects guests to check out by 10 a. m. and charges an extra $5 per hour for late checkouts. Select the linear equation that correctly represents how much Martina collects for one night of stay in her home.
Question 14 options:

A)

c = 25 + 10p + 5h

B)

c = 25 + 10 + 5

C)

c + 25 = 10p + 5h

D)

c = 25 โ€“ 10p โ€“ 5h
Question 15 (5 points)
The graph below represents taxi fares in the city of Chicago. If a woman travels 8.5 miles by taxi, what would you expect her fare to be? Give an estimate to the nearest dollar.
image
Question 15 options:

A)

$21

B)

$22

C)

$24

D)

$20
Question 16 (5 points)
Select the correct graph for the function ฦ’(x) = 3x + 4.
Question 16 options:

A)

image

B)

image

C)

image

D)

image
Question 17 (5 points)
Use a table of values to graph the function ฦ’(x) = |x + 2| โ€“ 1. Select the correct graph below.
Question 17 options:

A)

image

B)

image

C)

image

D)

image
Question 18 (5 points)
image

Write the equation of the line shown in the graph above in slope-intercept form.
Question 18 options:

A)

y = โ€“x + 2โˆ•3

B)

y = โ€“2โˆ•3x + 1

C)

y = 2โˆ•3x + 1

D)

2x + 3y = 3
Question 19 (5 points)
Select the correct graph for the function ฦ’(x) = โ€“x โ€“ 7.
Question 19 options:

A)

image

B)

image

C)

image

D)

image
Question 20 (5 points)
The function ฦ’(x) = xโˆ’โˆ’โˆš3 is translated 3 units in the negative y-direction and 8 units in the negative x- direction. Select the correct equation for the resulting function.

Question 20 options:

A)

ฦ’(x) = + 8

B)

ฦ’(x) = โ€“ 8

C)

ฦ’(x) = ฦ’(x) = โ€“ 3

D)

ฦ’(x) = ฦ’(x) = โ€“ 3

answer
Answers: 1

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