Algebra 2 Q3 Exam

Write  5² = 25  in logarithmic  form

• log₅   2 = 25
• log₅   25  =  2
• log₂  25  = 5
• No Correct Answer

Rewrite log_pt = m in exponential form.

• p^t = m
• t^m = p
• m^t = p
• p^m = t

Solve for x:
10^2x+4 = 10⁵

• 7
• 20
• -1/2
• 1/2

Write the logarithm expression as a single logarithm

log₅4 + log₅3

• log₅7

• log₅12

• log₇5

• 3log₅4

 $\log_{10}\left(r-8\right)=\log_{10}\ 14$  

• 5

• 22

• 2

• -2

Riley invested $1,000 in savings bonds. If the bonds earn 6.75% interest compounded semi-annually, how much total will Riley earn in 15 years?

• $1,584.62
• $2,651.39
• $2,706.86
• $1,825.10

solve for x.

 $\left(\frac{1}{64}\right)^{x-1}=16^{x+3}$  

• -1

• -3/5

• 9

• -7/5

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth
• Decay

Is this exponential growth or decay?

• Growth
• Decay