Exponential Functions Percent

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

The expression 12(1.015)^t models the population of elephants in a wildlife refuge after t years since 1975.
Is the population of elephants increasing or decreasing?

• Increasing

• Decreasing

Tags

CCSS.HSF-IF.C.8B

What is the initial value of the situation represented by f(x)=0.05(2)^x?

• 0.05

• 2

• 0.1

• 1

Tags

CCSS.HSF.LE.B.5

Is the table linear or exponential?

• Linear

• Exponential

Is the table linear or exponential?

• Linear

• Exponential

An item is increasing in value by 45% each year. What is the RATE OF GROWTH?

• 0.45

• 1.45

• 0.55

• 45

Tags

CCSS.HSF-LE.A.1C

Your account at the bank accrues interest at a rate of 6.5% each year. What equation could describe the value of your account?

• y = 2000(1.065)^x

• y = 500(0.65)^x

• y = 2500(0.35)^x

• y = 50(1.65)^x

Tags

CCSS.HSF.LE.A.2

A new medicine causes an infection to decreases by 33% per dose. What rate would the exponential function for this situation have?

• 1.33

• 1.033

• 0.33

• 0.67

Tags

CCSS.HSF.LE.A.2

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x

• y=6(1+14)^x

• y=6(1.14)^x

• y=6(0.86)^x

Tags

CCSS.HSF.LE.A.2

What is a, the starting term, for the function: f(x) = 300(1.16)^x?

• 300

• 1.16

• .16

• x

Tags

CCSS.HSF.LE.B.5