8TH GRADE MATH ACAP REVIEW

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 two functions have a graph that is a line?

• y = 3/x + 2

• y = 2x²– 9x

• y = –3^x

• y = 2x – 9

• y = –6x/7

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Select all of the following equations which define linear functions.

• y = 3/5

• y = x² – 7

• y = 6 – 5x

• y = 9x

• y = 4/x + 1

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CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

Which sets of ordered pairs are functions?

Choose all that apply.

• (9, -1), (8, -2), (7, -3), (6, -4)

• (5, -1), (5, -2,), (5,12), (5, 0)

• (4, 2), (-4, 2), (2, 4), (-2, -4)

• (1, -4), (2, -4,), (3, -4), (4, -4)

• (5, 8), (4, 9), (5, 9), (4, 8)

Tags

CCSS.8.F.A.1

Dave owns a lawn business. He charges $10 per hour and a $25 dollar disposal fee. What is the correct equation Dave would use to find out how much to charge his customers?

• y = 25x + 10
• x = 25y + 10
• y = 10x +25
• x = 10y + 25

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CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.EE.C.7

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Who has the greater rate of change?

• Hunter has the greater rate of change.
• Casey has the greater rate of change 
• They have the same rate of change

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CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.2

CCSS.8.F.B.4

CCSS.8.SP.A.3

What's the initial value of the equation y = 2x + 4

• 4

• -4

• 2

• 2x

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CCSS.8.EE.B.6

CCSS.8.F.B.4

CCSS.8.SP.A.3

What are the rate of change and initial value?

• Rate of Change = 3 Initial Value = 8

• Rate of Change = 1/3 Initial Value = 8

• Rate of Change = 8 Initial Value = 3

• Rate of Change = 8 Initial Value = 1/3

Tags

CCSS.8.F.B.4

CCSS.8.SP.A.3

Reflection means

• turn

• flip

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

Translation means

• slide

• flip

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CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3