Algebra 2 - Quiz #7 (Spring 2022)

$2500 is invested in a savings account that earns 3.5% annual interest. Find the amount in the account after 6 years if interest is calculated monthly. Use the formula:   $A=P\left(1+\frac{r}{n}\right)^{nt}$  

• $3083.25

• $19811.22

• $583.25

$2500 is invested in a savings account that earns 3.5% annual interest. Find the amount in the account after 6 years if interest is calculated continuously. Use the formula:  $A=Pe^{rt}$  

• $3084.20

• $20415.42

• $3.30 E 12

You buy a squishmallow for $29.99. If the value depreciates by 3% per year, what will the squishmallow be worth in 4 years?

•  $26.55

•  $2.43 E -5

•  $33.75

• 

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CCSS.HSF.BF.A.2

Find the inverse of:  $y=\log_8\left(x-5\right)+7$  

•  $y=8^{\left(x-5\right)}+7$  

•  $y=8^{\left(x-7\right)}+5$  

•  $y=8^{\left(x+7\right)}-5$  

Tags

CCSS.HSF-BF.B.4A

• 

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CCSS.HSF-IF.C.7E

What is the asymptote line for the logarithmic function:  $y=\log_3\left(x+3\right)-5$  

•  $y=-5$  

•  $x=3$  

•  $x=-3$  

Tags

CCSS.HSF-IF.C.7E

• 

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CCSS.HSF.BF.B.5

Evaluate:  $\log_8128$  

•  $16$  

•  $\frac{7}{3}$  

•  $2.15$  

• Reflection in the x-axis, left 2 units, up 1 unit.

• Flip across the x-axis, right 2 units, down 1 unit.

• Reflection in the x-axis, left 2 units, down 1 unit.

Tags

CCSS.HSF.BF.B.3

Write the equation of the logarithmic function  $y=\log_5x$  after the following transformations: Vertical stretch by a factor of 4, right 2 units and down 7 units.

•  $y=4\log_5\left(x-2\right)-7$  

•  $y=4\log_5\left(x+2\right)-7$  

•  $y=4\log_5\left(x-2\right)^{-7}$