Topic 3 Test Review

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

What is the domain of the function?

• {0, -1, 2, 8, 9, 16, 30, 46}

• {-1, 2, 8, 9, 16, 30, 46}

• {-1, 9, 16}

• {2, 8, 30, 46}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the range of the function?

• {-1, 9, 16}

• {-1, 2, 8, 9, 16, 30, 46}

• {0, -1, 2, 8, 9, 16, 30, 46}

• {2, 8, 30, 46}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the best description of the relation in Item 2&3?

(the problem before. see picture)

• a function that is one-to-one

• a function that is many-to-one

• a function that is one-to-many

• a relation that is not a function

Tags

CCSS.8.F.A.1

Jack works after school. Each day he is paid a set amount, plus an hourly wage. Assume Jack works from 2:30 P.M. to 7:00 P.M. Using the function f(x) = 10x + 8, how much would he earn?

• $33

• $35.50

• $45

• $53

Tags

CCSS.HSF.LE.B.5

Given f(x) = 2x, write an equation for f(x) + 1.

• $f\left(x\right)+1$

• $f\left(x\right)=2x$

• $f\left(x\right)=2x+1$

• $f\left(x\right)=2$

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. Choose the EXPLICIT formula to represent the situation.

• an = 14 + 9(n + 1)

• an = 5 + 9n

• an = 14 + 9n

• an = 5 + 9(n + 1)

Tags

CCSS.HSF.BF.A.2

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

• $a_n=a_{n-1}+5;\ \ a_1=14$

• $a_n=a_{n-1}+23;\ \ a_1=9$

• $a_n=a_{n-1}+14;\ \ a_1=9$

• $a_n=a_{n-1}+9;\ \ a_1=14$

Tags

CCSS.HSF.IF.A.3

Each day, Yumiko does sit-ups for a few minutes before running. Use the table of her exercise data to choose the scatter plot with the best trend line.

• 
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• 
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Tags

CCSS.8.EE.B.5