Exponential and Log Functions

How are exponential and log functions related?

• They are cousins

• They are siblings

• They are married

• They are inverses

What is the domain of y=2^x?

• x>0

• x=all real numbers

• y>0

• y=all real numbers

What is the range of y=2^x?

• x>0

• x=all real numbers

• y>0

• y=all real numbers

Where is the asymptote of y=2^x?

• y=0

• x=0

• y=2

• There isn't one

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

• x = 2

• x = -2

• y = 2

• y = -2

Which of the following is an exponential decay model?

• y = 3 * (1/2)^x

• y = 1/2 * (3)^x

• y = -2 * (2)^x

• y = -3 * (3/2)^x

Solve for x: log₃x=log₃9

• x=3

• log 9

• x=9

• 3x

Solve for x: log₅5=x

• x=5

• x=1

• log 5

• x=27

Evaluate: log_a(1/a)

• 1

• -2

• 3

• -1