Ch. 7: Logarithmic and Exponential Equations

Solve:
log x + log 8 = 2 

• 10
• 12.5
• 15
• 17.5

Identify the range of the function shown here.

• All real numbers greater than 3
• All real numbers greater than or equal to 3
• All real numbers less than 3
• All real numbers less than or equal to 3

4^{3x + 5} = 16

• -5/3

• -1

• -3/2

• 2/3

Solve for x.
Log₃(x-5)=2

• 25
• 5
• 130
• 14

What is the horizontal asymptote of the exponential function?

• y=-3
• x=-3
• y=1
• x=1

Solve the equation:

  $4^{2x\ }=\ 7$  

• 0

• 1.311

• .364

• .702

Use the change of base rule to rewrite this problem:

log₂16

• log(16)/log(2)

• log(2)/log(16)

Solve the log by using change of base )

log₄32

• 8

• 5/2

• 2/5

• 3/2

Is the pictured graph growth, decay, or linear or none?  

• Growth
• Decay
• Linear
• None

The common logarithm has what base?

• 10
• 0
• e
• -e