Writing and interpreting functions

What is y when x is -3?

• 2

• 3

• 0

• -1

Given this graph of the function f(x), find x when f(x) = 30.

• 5

• 6

• 7

• 20

y = -2x - 16
What is the value of y when x = -5?

• -12
• -10
• -8
• -6

If a graph shows the relationship between the distance from a light source and the size of a shadow, which variable is the independent variable?

• Size of the shadow

• Time of day

• Color of the light source

• Distance from the light source

When Allie has 20 years of experience on the job, how many years of experience will Jenna have on the job?

• 15

• 25

• 16

• 24

Who is the teacher of this class?

• Mr. Maestri

• Mr. Maestri

• Mr. Maestri

• Mr. Maestri

Y = 4X + 5
 if X = 0
What does Y equal?

• 5
• 4
• 0
• -5

Which numbers belongs right above the 150?

• 120

• 90

• 100

• 80

Ms. Williams noticed that the lack of rain was impacting the growth of her tomato plants.

● Every week, she recorded data in sets of ordered pairs.

● The x-coordinate is the number of weeks at the time of recording.

● The y-coordinate gives the height of the plant in inches.

She recorded the following coordinates for a plant exposed to pollution:

(1, 3), (2,9), (3,14), (4,18), (5, 21)

If the pattern continues, at which week should Ms. Williams expect no change in the plant height? Hint: Record the data into a table.

• Week 7

• Week 8

• Week 9

• Week 10