1 pt
DOK: 3

5.

Which of the following situations can best be modeled with a quadratic function?

A

For every month that passes, the number of songs stored on an MP3 player increases by 22.

B

The change in the number of students enrolled in a college over the previous semester is increasing by 58 each semester.

C

The amount of yogurt consumed by citizens of a country is increasing by 25,000 ounces every month.

D

The average number of minutes high school students sleep every night is decreasing by 3 minutes every 5 years.

1 pt
DOK: 3

7.

If a change in variable *x* suggests a change in variable *y*, does the change in *x* cause the change in *y*?

A

always

B

sometimes

C

never

D

only if there is a direct relationship

1 pt
DOK: 2

8.

The number of people in a line as a function of minutes passed can be modeled with the quadratic function whose graph has a vertex of (1, 14) as shown. What is the quadratic function's equation?

A

$v=2{(x-1)}^{2}+14$

B

$v=3{(x-1)}^{2}+14$

C

$v=4{(x-1)}^{2}+14$

D

$v=5{(x-1)}^{2}+14$

1 pt
DOK: 3

9.

Which of the following situations can best be modeled with a linear function?

A

For every $0.15 decrease in the price of a carton of eggs, the number of cartons purchased increases by 10 percent.

B

The total number of hot tamales sold is doubling every year.

C

The area of a circle is equal to π times the radius squared.

D

Every 3 months the number of potholes in the street increases by 5.

1 pt
DOK: 3

10.

Which of the following situations can be modeled with an exponential function?

A

Corey pays $410 a month for rent.

B

Brittany’s income triples every 10 years.

C

Ralph gets paid $150 an hour.

D

Jessica notices a constant change in temperature of her coffee with every minute that passes.