Linear Representation

Make an equation from the graph.

• y = 2x + 3

• y = 3x + 2

• y = 3x + 3

Make an equation from the graph.

• y = 100x + 4

• y = 40x + 100

• y = 4x + 100

Make an equation from the table: (a)   .

• y = 3x + 1
• y = 1x + 1
• y = 3x
• y = 2x + 3

Make an equation from the 2 points:

(4, 3) and (8,1) is (a)  

• y = 2x - 15
• y = -2x + 17

What does the slope represent in this situation?

A water tank already contains 55 gallons of water when Baxter begins to fill it. Water flows into the tank at a rate of 8 gallons per minute.

• the amount of water in the tank before it is being filled

• the amount of water going into the tank per minute

• the total amount of water in the tank

• the amount of water leaving the tank per minute

What does the y-intercept represent in this situation?

A water tank already contains 55 gallons of water when Baxter begins to fill it. Water flows into the tank at a rate of 8 gallons per minute.

• the amount of water in the tank before it is being filled

• the amount of water going into the tank per minute

• the total amount of water in the tank

• the amount of water leaving the tank per minute

Jacob is ordering pizza to share with some friends. It costs $33 to have 3 pizzas delivered and $49 to have 5 pizzas delivered. The cost y, is a linear function of the number of x pizzas. Which equation represents this scenario?

• y = 8x + 9

• y = 9x + 8

• y = 8x + 57

Long’s Coffee Shop sells a refill mug for $8.95. Each refill costs $1.50. Last month, Jalissa spent $26.95 on a mug and refills. How many refills did she buy? Make an equation to represent this situation.

• y = 26.50x + 8.95

• y = 1.50x + 26.95

• y = 8.95x + 1.50

• y = 1.50x + 8.95

What is the equation of the line that has a slope of -1 and goes through (-2, -4)?

• 5
• -5

Tags

AI.9.3.A