Math 8 Unit 7 Practice Test: Functions

Which of the following represents a function?

• 
• 
• 
• 

Tags

CCSS.8.F.A.1

Which of the following sets of ordered pairs is a function?

• {(6,1),(7,3),(4,2),(6,2)}

• {(6,1),(7,1),(4,1),(4,2)}

• {(6,1),(7,1),(4,1),(8,1)}

• {(7,5),(7,2),(5,2),(6,9)}

Tags

CCSS.8.F.A.1

Look at the table. Which coordinate pair could replace the missing values to create a relation that is NOT a function?

• (-4,1)

• (1,0)

• (5,8)

• (0,2)

Tags

CCSS.8.F.A.1

What is the range of the relation?

• {-3, -2, 0, 1, 3, 4}

• {-3, 1, 3, 4}

• All real numbers

• {-2, 0, 1, 3}

Which table OR tables have a domain of {-3, 1, 3, 6}

• Tables A and B

• Table B only

• Tables C and D

• Table D only

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which colored line has a negative slope?

• Red

• Green

• Blue

• Purple

Tags

CCSS.8.EE.B.5

Which of the following best describes the slope of the numbers in this table of values?

• Positive

• Negative

• Zero

• Undefined

Tags

CCSS.8.EE.B.5

What is the y-intercept of the line y=-2x-5?

• -5

• -2

• 0

• y

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Which of the following matches the table of values?

• y-intercept of -1 and a slope of 1/3

• y-intercept of 3 and a slope of -1

• y-intercept of -1 and a slope of 3.

• y-intercept of -3 and and a slope of 1.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which of the following is true about the graph?

• y-intercept of 2 and a slope of 2.

• y-intercept of -4 and slope of 2

• y-intercept of -4 and slope of 1/2.

• y-intercept of 2 and a slope of 1/2.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2