CHAPTER 7 (ALGEBRA 2)

Which represents exponential decay?

• A

• B

• C

• D

What transformations occur in the following function?

• right 3, up 2
• left 3, up 2
• left 3, down 2
• right 3, down 2

 $\ln\left(\frac{2x^2y}{z^4}\right)$  

• ln2+2lnx+lny+4lnz

• ln2+2lnx+lny-4lnz

• 2ln(2xy)-4lnz

• 2ln2x+lny-4lnz

• log (xy³)
• log (x⁶ − y³)
• log (x⁶/y³)
• log (x⁶ + y³)

Solve:
3^x-2 = 27^4x

• -2/11
• -2/3
• 2/11
• 2/3

Solve:
16^x-3 = 8^x-3

• 9
• -3
• 0
• 3

Solve:
2^4x+1 = √2

• -1/8
• 1/8
• 0
• -1/4

Log with a base "e" (log_e) is the same thing as...

• "e"
• Natural Logarithm (LN)
• Common Logarithm (Log)
• Natural Log, base "e"
  LN_e

Solve for x:

log₅(4x-7)=log₅(x+5)

• 3

• 12

• 4

• 7

Solve for x:

log₂(2) + log₂(8x) = 6

• x = 3

• x = 2

• x = 6

• x = 4