Chapter 7 Exponential

What behavior does the exponential function y = (1/5)^x describe?

• Exponential Decay

• Exponential Growth

For the function y = ab^x, which value for b represents exponential decay?

• 0 < b < 1

• b > 1

For the function y = ab^x, which value for b represents exponential growth?

• 0 < b < 1

• b > 1

Solve the equation.

4^x=19

• x=log₁₉4

• x=log₄19

• 19/4

• 4/19

What is the y-intercept of y = 3(4)^x?

• 4

• 3

• 1

• -3

What is the y-intercept of y = 5(3)^x + 2

• 3

• 2

• 7

• 5

Using the formula: A(t) = a(1 + r)^t

• $1,562.50

• $735.10

• $1340.10

How does the graph of the given function compare to the graph of the parent function?

• Up 2 units

• Down 2 units

• Left 2 units

• Right 2 units

How does the graph of the given function compare to the graph of the parent function?

• Up 5 units, compressed by factor of 5

• Up 5 units, stretched by factor of 5

• Down 5 units, compressed by factor of 5

• Down 5 units, stretched by a factor of 5

What is the value of log₈32?

• 5/3

• 3/5

• 3

• 5