Functions Test Review

Which of the following relations are a function?

• (3,2) (4,2) (5,2) (3,3) (4,3) (5,3)
• (5,4) (4,5) (4,5) (5,4)
• (0,2) (0,5) (0,8) (0,5) (0,2)
• (5,2) (4,2) (3,2) (2,2) (1,2) (0,3)

Tags

CCSS.8.F.A.1

Which of the following equations won't make a linear graph?

• y=2x
• y=5x-7
• y=x^2+3
• y=√8x^2+3

Tags

CCSS.8.F.A.3

Which equation is represented by this graph?

• y=x+4
• y=-5x+2
• y=2x+3
• y=4x-9

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which of the following points is a solution to the line y=2x-7?

• (0,0)
• (5,-1)
• (2,-3)
• (3,-4)

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

The point (5,2) isn't the solution to which equation?

• y=9x-43
• y=-2x+7
• y=x-3
• y=-3x+17

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Is this equation proportional? Why?
y=3/8x

• Yes, because it passes through the origin.
• Yes, because the equation comes in fraction form.
• No, because it doesn't pass through the origin.
• No, because the equation comes in fraction form.

Tags

CCSS.8.EE.B.5

How do you determine the slope of any graph without the formula?

• Run/Rise
• Rise/Run
• Rise/Rise
• Run/Run

Tags

CCSS.8.EE.B.5

What is the slope of this graph?

• 7/12
• 9/4
• -6/7
• -3/4

Tags

CCSS.8.EE.B.5

The numbers of pencils y that Sam buys is represented by the price $x that he spends. If he spends $76 dollars to get 19 pencils, how much does each pencil cost? What is the equation that can model this situation?

• $4; y=-4x
• $4; y=1/4x
• $4; y=4x
• $4; y=-1/4x

Tags

CCSS.HSF-LE.A.1B

The cost $y for a party is represented by the x amount of pizzas ordered. If $3 is spent for 15 pizzas, what equation can be used to represent the cost of the food by the amount of the pizzas ordered?

• y=5x
• y=1/5x
• y=3x
• y=1/3x

Tags

CCSS.6.EE.C.9