Chapter 4 Functions

The graph shows the distance a cheetah ran. A giraffe ran at a rate of 0.25 mile per minute. Which statement about their speeds is true?

• The cheetah traveled 0.6 mile per minute
• The cheetah traveled 3 miles per minute
• The cheetah was twice as fast as the giraffe
• The cheetah and the giraffe traveled at the same rate

What is f(7) if f(x) = -4x + 9?

• -19
• -4
• 4
• 37

Which table represents a linear function? 

• A
• B
• C
• D

Which function is shown?

• y= -3/2 - 2
• y = -2/3x - 2
• y = 3/2x - 2
• y = 2/3x - 2

What statement is true about the table?

• The relation is a function
• The relation is not a function

What is the domain of the relation {(-2, 4), (1, 3), (0, -4), (3, 2)}?

• {0, 1, 2, 4}
• {-4, -2, 2, 3}
• {-2, 0, 1, 3}
• {-4, 2, 3, 4}

What is the range of the relation {(-2, 4), (1, 3), (0, -4), (3, 2)}?

• {0, 1, 2, 4}
• {-4, -2, 2, 3}
• {-2, 0, 1, 3}
• {-4, 2, 3, 4}

Is the relation {(-2, 4), (1, 3), (0, -4), (3, 2)} a function?

• Yes
• No

The graph shows the amount of food Ian's rabbit eats each week. Which equation can be used to find the number of pounds y eaten after any number of weeks x?

• y = 120x
• y = 60x
• y = 30x
• y= 15x

Is the relation a function?

• Yes, it passes the vertical line test
• No, it fails the vertical line test
• No, it isn't a function because there isn't a line