Interpret Exponential Expressions

What type of function does the equation f(x) = 200(0.79)^x represent?

• Exponential Growth

• Exponential Decay

• Linear

• Quadratic

Tags

CCSS.HSF-IF.C.8B

Does the following equation model growth or decay?

y = 500(.30)^x + 7

• Growth by 30%

• Growth by 70%

• Decay by 30%

• Decay by 70%

Tags

CCSS.HSF-IF.C.8B

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the exponential equation?

• y=8(15,000)^x

• y=15,000(1.08)^x

• y=15,000(0.92)^x

• y=15,000(0.08)^x

Tags

CCSS.HSF.LE.A.2

What is the percent (%) of increaase or decrease in the following equation?

f(x) = 250 (0.95)^x

• Decrease by 95%

• Increase by 5%

• Decrease by 5%

• Increase by 95%

Tags

CCSS.HSF-IF.C.8B

What is the equation of the graph shown, and what is the y-intercept?

• y = 1⁄3 (3)^x ; a = 1⁄3

• y = 1⁄3 (3)^x ; a = 3

• y = 3 (1/3)^x ; a = 1⁄3

• y = 3 (1/3)^x ; a = 3

Tags

CCSS.HSF.LE.A.2

Given y=3^x determine the y-intercept

• 1

• 3

• 0

• y

Tags

CCSS.HSF-IF.C.7E

Does the following represent growth or decay?

y = 1/2(1.25)^x + 2

• Growth by 25%

• Growth by 75%

• Decay by 25%

• Decay by 75%

Tags

CCSS.HSF-IF.C.8B

Any expression raised to the zero power is always equal to

• 0

• 1

• itself

• negative

Tags

CCSS.8.EE.A.1

According to exponent rules, when we raise an exponential expression to a power we _______ the exponents.

• add

• subtract

• multiply

• divide

Tags

CCSS.8.EE.A.1

Marilyn collects old dolls. She purchases a doll for $450. Research shows this doll's value will increase by 2.5% each year. Write an equation that determines the value, V, of the doll t years after purchase.

• V(t) = (1 + 0.025)^t

• V(t) = (1 - 0.025)^t

• V(t) = (1 + 2.5)^t

• V(t) = (1 - 2.5)^t

Tags

CCSS.HSF.LE.A.2