Benchmark#3 Review Exam Monday, 2010304

1. EQ24: Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for a_n to find a₂₀, the 20th term of the sequence.

3 , 15 , 27 , 39 , 51 , . . .

• a_n = 9_n - 12; a₂₀ = 168

• a_n = 12_n - 3; a₂₀ = 237

• a_n = 9_n - 3; a₂₀ = 177

• a_n = 12_n - 9; a₂₀ = 231

Tags

CCSS.HSF.BF.A.2

1. EQ24: -8, -17 , -26, -35, . . . Find the 20th term.

• a_n = -9_n + 1; a₂₀ = -179

• a_n = -9_n - 8; a₂₀ = -188

• a_n = 9_n - 1; a₂₀ = 179

• a_n = 9_n + 8; a₂₀ = 188

Tags

CCSS.HSF.BF.A.2

1. EQ25: Determine whether this mapping diagram depicts a function or not.

• NO

• YES

Tags

CCSS.8.F.A.1

EQ25: Determine whether this mapping diagram depicts a function or not.

• NO

• YES

Tags

CCSS.8.F.A.1

1. EQ26: Choose the graph which represents a function.

• Graph A

• Graph B

• Graph c

1. EQ27: The values of y for different values of x are shown. What is the nature of y as a function of x?

• Decreasing

• Increasing

• Constant

• None of the above

Tags

CCSS.HSF-LE.A.1B

EQ28: Evaluate the exponential expression. (-1)⁹

• -1

• 9

• 10

• 1/9

Tags

CCSS.8.EE.A.1

EQ28: Evaluate the exponential expression. 45/0

• The expression is undefined

• 45

• 0

• 1

EQ29:

• 12 m

• 15 m

• 11.25 m

• 13 m

Tags

CCSS.HSG.SRT.B.5

EQ29: On a sunny day David's shadow is 2.9 m long, while the shadow of the tower is 11.3 m long. If David is 1.8 m tall, calculate the height of the tower.

• 9 m

• 8 m

• 10 m

• 7 m

Tags

CCSS.HSG.SRT.B.5