Topic 3 Study Guide Linear Functions

Which relation is a function?

• (1, 0), (3, 0), (1, 1), (3, 1), (1, 3)

• (1, 1), (2, 2), (3, 3), (4, 4), (5, 8)

• (2, 7), (6, 5), (4, 4), (3, 3), (2, 1)

• (9, -3), (9, 3), (4, -2), (4, 2), (0, 0)

Tags

CCSS.8.F.A.1

Identify the domain of the relation.

• {2, 8}

• {16}

• {2, 8, 30, 46}

• {-1, 9, 16}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Identify the range of the relation.

• {-1, 9, 16}

• {-1, 2, 8, 9, 16, 30, 46}

• {2, 8, 30, 46}

• {16}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Jack works after school. Each day he earns a set amount, plus an hourly wage. Write a linear function f Jack can use to determine his pay.

• f(x) = 14x + 9

• f(x) = 10x + 8

• f(x) = 1/10x + 17.9

• f(x) = 5x + 18

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which is a reasonable domain for the function in Item 4?

• 0 < x < 6

• 0 < x < 24

• 0 < x < 68

• 0 < x < 248

In Item 4, assume Jack works from 2:30 PM to 7:00 PM. How much would he earn?

• $33

• $35.50

• $45

• $53

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which of the following is an arithmetic sequence?

• -2, -5, -8, -11, -14, -17...

• 0, 5, 0, 10, 0, 15, ...

• 2, 4, 8, 16, 32...

• 5, 11, 17, 23, 29, 36, ...

Tags

CCSS.HSF.BF.A.2

The cost of having one pizza delivered is $14. Each additional pizza costs $9 more. Write the recursive formula to represent this situation.

• 
• 
• 
• 

Tags

CCSS.HSF.IF.A.3

The cost of having one pizza delivered is $14. Each additional pizza costs $9 more. Write the explicit formula

• 
• 
• 
• 

Tags

CCSS.HSF.BF.A.2

Each day, Yumiko exercises by first doing sit-ups and then running. What type of correlation does the scatter plot in Item 12 show?

• none

• cannot tell

• positive

• negative

Tags

CCSS.HSF-LE.A.1B