4.7.25 slope-intercept review

The table represents some points on the graph of a linear function. Which function represents this relationship?

• y = 2x + 3

• y = 3x + 2

• y = -2x + 3

• y = -3x + 2

The table shows the amount of pet food in cups remaining in an automatic feeder as a function of the number of meals the feeder has dispensed. Which function represents this relationship?

• y = -6x + 21

• y = -3x + 21

• y = -6x + 24

• y = -3x + 24

A linear function is shown on the graph. Which equation best represents this situation?

The graph shows the water level in the tank. Which equation best represents this situation?

• y = 4x - 9

• y = -4x + 9

Kathy wants to reserve the party room at Olive Garden for her daughter’s graduation party. The room costs $450 to rent, and an additional $24 for every guest. Write an equation that models Kathy’s total cost at the restaurant.

• y = 450x + 24

• y = 426x

• y = 24x + 450

• y = 24 + 450x

An airplane begins its approach to the runway from an altitude of 30,000 feet. The plane descends at a rate of 750 ft. per minute. Write an equation that represents this situation.

• y = -750x + 30000

• y = 750x + 30000

• y = -30000x + 750

• y = 30000x - 750

The table represents some points on the graph of a linear function. Which function represents this relationship?

• y = -3/5x + 3/5

• y = -5/3x + 5/3

• y = 5/3x - 5/3

• y = 3/5x - 3/5

Which equation best represents this situation?

• y = 2

• x = 2

• y = 2x

• x = 2y

The air conditioning company charges $75 for call out fees and has a $32 per hour fee. Write a linear equation that models the total bill, t, for the air conditioning company if they worked h hours.

• y = 43x

• y = 107x

• y = 75x + 32

• y = 32x + 75