Functions Exam

The set of ordered pairs represents a function.

{(-6, 11), (4, 22), (-3, 19), (6, 1), (____, 8)}

Which value could NOT be the missing x-value in the last ordered pair?

• 1

• -22

• -3

• 11

Given the function f(x) = 7(3 - x) + 5, which of the following is a true statement?

• f(q) = -42

• f(-3) = 5

• f(-4) = 54

• f(3) = 0

Which of the following functions has a range of y ≤ 5?

• 
• 
• 
• 

Which of the following best describes the domain of the function on the graph below?

• -1 ≤ x ≤ -9

• -5 ≤ x ≤ 45

• -5 < x < 45

• -10 ≤ y ≤ 25

If g(x) = (x + 5)² - 12, what is the value of g(-7)?

Mathematical Equivalence

OFF

Summer and Mia created the graphs shown.

Whose graph represents a function?

• Summer’s graph only

• Mia’s graph only

• Both graphs represent functions

• Neither graph represents a function

Find the range of the graph.

• 2 < y ≤ 18

• 12 < y ≤ 18

• 2 ≤ y < 18

• All real numbers

Peter launched a water balloon from the top of a building that is 15 yards tall. The graph shows the height of the water balloon as a function of x, the distance from the building in yards. Which best represents the domain of the situation?

• 15 ≤ x ≤ 30

• 0 ≤ x ≤ 8

• 0 ≤ y ≤ 30

• All real numbers

Which is true about the table below?

• The table is a function because each input has one output.

• The table is not a function because the input values of 0.5 and 1.5 have the same output value.

• The table is not a function because it is not proportional.

• There is not enough information to determine if the table is a function.