Unit 5 Test - Functions & Linear Relationships

What is the domain of the relation given below? {(2, -5), (4, 7), (0, 2), (9, -1)}

• The domain of the relation is {0, 2, 4, 9}.

• The domain of the relation is {-5, 7, 2, -1}.

• The domain of the relation is {2, 7, 0, -1}.

• The domain of the relation is {-9, 4, 0, 2}.

What is the range of the relation shown on the graph?

• {-6, -2, 0, 4, 5}

• {-5, -2, 1, 4, 5}

• {-7, -2, 0, 3, 5}

• {-8, -2, 0, 4, 7}

Which relations represent a function? .

• 
• 

Tags

CCSS.8.F.A.1

What is the range of the function y = 4x - 7 when the domain is {-2, -1, 3}?

*Hint, make a table of values

• y: {-15, -10, 2}

• y: {-15, -11, 5}

• y: {-18, -3, 5}

• y: {-8, -11, 5}

What is the slope of the line graphed below?

• 3

• -3

Tags

CCSS.8.EE.B.5

What is the slope of the line graphed below?

• 1

• -1

• 0

• undefined

Tags

CCSS.8.EE.B.5

11. Find the slope of the line that passes through the points (-1, -3) and (-9, 7).

• 1

• -1

• 5/4

• -5/4

Tags

CCSS.8.EE.B.5

What is the rate of change from year 2 to year 7?

• 5 ft/yr

• 3.5 ft/yr

• 1.2ft/yr

• 4.8 ft/yr

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Allie bought a used car in 2011 with 19,800 miles on it. In 2016, she decided to sale the car and it had 79,700 miles. Find the rate of change in miles from 2011 to 2016.

• 9,980 miles per year

• 10,175 miles per year

• 10,760 miles per year

• 11,980 miles per year

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Which equations represent linear functions? Check all that apply.

• y = 2x + 3

• y = -4x

• 2x+3y=7

Tags

CCSS.8.F.A.3