Quiz about Constant Rate of Change and Proportionality

Question 1

At a school carnival, tickets can be purchased to participate in different activities. The table shows the cost of different numbers of tickets. What is the constant of proportionality that relates y, the total cost in dollars to x, the number of tickets purchased?

Accepted Answer

$0.25

Answer

$4.00

Answer

$1.00

Answer

$0.10

Question 2

What is the formula for Constant of Proportionality?

Accepted Answer

y = kx

Answer

y = k + x

Answer

y = k - x

Answer

x = ky

Question 3

Cheddar Cheese cost $4.25 per pound. Which equation best represents y, the total cost of x pounds of cheddar cheese?

Accepted Answer

y = 4.25x

Answer

x = 4.25y

Answer

y = 4.25 - x

Answer

y = 4.25 + x

Question 4

The graph represents the linear relationship between the number of books Layla has read and the number of months she has been a member of a book club. Which of these statements is supported by the rate of change of this relationship?

Accepted Answer

Layla read 3 books in the first 2 months she was a member of the book club.

Answer

Layla read 2 books in the first 3 months she was a member of the book club.

Answer

Layla read 3 books in the first 4 months she was a member of the book club.

Answer

Layla read 4 books in the first 3 months she was a member of the book club.

Question 5

What is the constant rate of change between the quantities in the table?

Accepted Answer

$5 per hour

Answer

$1 per hour

Answer

$40 per hour

Answer

$10 per hour

Question 6

A constant rate of change is represented by a

Accepted Answer

linear line.

Answer

line that goes up.

Answer

line that goes down.

Answer

horizontal line.

Question 7

What is the constant rate of change in the function y=5x?

Accepted Answer

5

Answer

$$\frac{1}{5}$$

Answer

x

Answer

1

Question 8

What is the rate of change for the graph?

Accepted Answer

m = 1/2

Answer

m = 2

Answer

m = -1/2

Answer

m = -2

Question 9

This function has the constant rate of change.

Accepted Answer

Linear

Answer

Exponential

Answer

Neither

Question 10

Find the Constant Rate Of Change (CRC) for (3,7) and (11,23)

Accepted Answer

2

Answer

4

Answer

3

Answer

1

Question 11

A worker uses 450 inches of steel wire to make 300 springs the same size. At this rate how many inches of steel wire are needed to make 1 spring?

Accepted Answer

$$1\frac{1}{2\ }in.\ $$

Answer

$$\frac{1}{3}in.$$

Answer

$$\frac{1}{15\ }in.\ $$

Answer

$$\frac{2}{3}in.\ $$

Question 12

A recipe says to use 3 cups of flour to make 48 cookies. What is the constant of proportionality that relates the number of cookies made, y, to the number of cups of flour used in, x?

Accepted Answer

16

Answer

0.6

Answer

48

Answer

3

Question 13

An online game increases in number of users at a rate of 500 users each day. Which graph represents the relationship between y, the number of users, and x, the number of days?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 14

Caroline's cell phone plan cost $32 per month. Which table shows the sum of the amounts that Caroline will pay for her cell phone plan over the next 4 months?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Constant Rate of Change and Proportionality

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