M8 Interim Review December 2020

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

Which graph does NOT a function?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Which table represents a linear function?

• Table A
• Table B
• Table C
• Table D

Tags

CCSS.8.F.A.3

What is the correct equation in 
Slope-Intercept Form?
(y = mx +b)

• y = x + 2
• y = 2x - 1
• y = -x + 2
• y = -2x - 1

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Which function of x has the least value for the y-intercept?

• y = -3x + 7

• y = 8x

• 
• 

Find the slope of the line that passes through:
(6,7) and (4,2)

• 2/5
• -5/2
• 5/2
• -1/2

Tags

CCSS.8.EE.B.5

The local service center advertises that it charges a flat fee of $50 plus $8 per mile to tow a vehicle. Write an equation that represents the total cost (C) of a service for m miles of towing.

• y = 8x + 50

• C = 50m +8

• y = 50x + 8

• C = 8m + 50

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Justin placed a glass of water on his desk. The table shows the height of the water level each day at noon. Which equation best represents the relationship between h and d?

• h = 4 + 2d

• h = 10 – d

• h = 10 – 2d

• h = 12 – 2d

Which equation describes a linear function?

• $y\ =\ 2r^2$

• $y\ =\ -x\ +\ 4$

• $y\ =\ 3^x\ -\ 2$

• $y\ =\ \frac{5^2}{x}$

What is the equation of the line that passes through the point (-2,8) and has a y-intercept of 4?

• y = 8x

• y = 2x + 4

• y = 4

• y = -2x + 4