Exponential Functions from Word Problems

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(0.92)^x

• y=15,000(1.08)^x

• y=15,000(0.08)^x

Tags

CCSS.HSF.LE.A.2

James' 70 in. giant peach doubles in size every week. Write an expression that would represent how big the peach is after 5 weeks.

• 70(2)³⁵

• 2(70)⁵

• 5(70)²

• 70(2)⁵

Tags

CCSS.HSF.BF.A.2

You have inherited land that was purchased for $25,000 in 1970. The value of the land has appreciated by approximately 4% per year. What was the value of the land in the year 2000? Round to the nearest whole dollar.

• $750,000

• $605,035,808

• $81,084

• $7,346

The population of Boringtown decreased annually by 1.8% between the year 2015-2018. In 2015, there were approximately 200,000 people living in Boringtown. Which function models the city's population since 2015?

• f(x) = 200,000(1 + 0.018)³

• f(x) = 200,000(1 - 0.18)³

• f(x) = 200,000(1 + 0.18)³

• f(x) = 200,000(1 - 0.018)³

Tags

CCSS.HSF.LE.A.2

What is the multiplier (b) for this problem?

• 1.29

• .29

• .71

• 1.71

Tags

CCSS.8.EE.C.7B

Is this exponential growth or decay?

• Growth because a=1

• Growth because there is no a

• Decay because b=0.5

• Neither because a=0

Tags

CCSS.HSF-IF.C.8B

Is this exponential growth or decay?

• Growth, because of 7

• Growth because of 1.2

• Decay, because of 1.2

• Decay because of 7

Tags

CCSS.HSF-IF.C.8B

Pick the equation that is exponential decay

• y=2000(0.88)

• y=-4x

• y=0.5(1.88)

• y= -7+10x

What type of function does the equation y = 2^xrepresent?

• Exponential Decay

• Linear

• Exponential Decay

• Exponential Growth

Tags

CCSS.HSF-IF.C.8B

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