NC Math 1 EOC Review: Equations, Inequalities and Functions

Solve for x:

-2(-7x + 1) = 5x + 34

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CCSS.8.EE.C.7B

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CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.CED.A.3

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CCSS.HSA.CED.A.4

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CCSS.HSF.LE.B.5

•  All integer values of x

• All positive integer values of x

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CCSS.HSF.IF.A.2

CCSS.HSF.IF.A.1

Suppose the function f(x)=2x+8 represents the cost to ride x roller coasters at the local fair. If you have $22, how much more money do you need to ride 9 roller coasters?

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CCSS.HSF.LE.B.5

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CCSS.HSF.IF.A.2

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CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

The function f(x) = x + 10 can be used to determine how the cost for a person to purchase and download songs each month, where x represents the number of songs downloaded per month. The average customer downloads between 3 to 8 songs per month. Which interval represents a reasonable range for the monthly cost?

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CCSS.HSA.SSE.A.1

CCSS.HSA.SSE.B.3

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CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.CED.A.3