Exponential Functions Review (April 2020)

The function f(x) = 1.69(1.03)^x models the value of an investment, in thousands, after x years. What is the yearly interest rate the investment is earning?

• 3%

• 31%

• 69%

• 97%

Tags

CCSS.HSF-LE.A.1C

The population of bees in a certain county is changing according to the equation y = 75(0.96)^x, where y represents the population in billions and t represents time in years. Which statement describes how the bee population is changing?

• The population is increasing at a rate of 4% per year.

• The population is increasing at a rate of 96% per year.

• The population is decreasing at a rate of 4% per year.

• The population is decreasing at a rate of 96% per year.

Tags

CCSS.HSF-IF.C.8B

What expression is equivalent to (6x⁴y⁵)²?

• 12x¹⁶y²⁵

• 24x⁴y⁵

• 36x⁸y¹⁰

• 36x¹⁶y²⁵

Simplify the expression.

• A

• B

• C

• D

Simplify the expression.

• A

• B

• C

• D