Parts of Exponentials

What type of function is f(x)=2(1/7)^x ?

• Exponential Growth

• Exponential Decay

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

• (.27)^x
• .27
• 13
• 3.51

Tags

CCSS.HSF.LE.B.5

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

• 2
• 4
• (2)^x
• 8

Tags

CCSS.HSF-IF.C.7E

The amount of money in your bank account per month, x, is modeled by the equation y=1000(1.12)^x. Is the exponential growth or decay?

• Decay

• Growth

• Neither

• Linear

The amount of money in your bank account per month, x, is modeled by the equation y=1,000(1.12)^x. What is the initial value?

• 1,000

• 1.12

• .12

• 12%

The amount of money in your bank account per month, x, is modeled by the equation y=1,000(1.12)^x. What is the growth rate?

• 88%

• 1.12%

• .0012%

• 12%

Is the function y=5(0.6)^x exponential growth or decay?

• linear

• quadratic

• growth

• decay

Given the function y=5(0.6)^x what is the initial value?

• 5

• 0.6

• 500

• 60

Given the function y=5(0.6)^x what is the decay rate?

• .6%

• 60%

• 40%

• .4%

The function y=20(1.02)^x models the rabbit population in a certain town. Is the exponential growth or decay?

• quadratic

• linear

• growth

• decay