6.3 Exponential Growth and Decay

More and more people are purchasing food from farmers' markets. As a consequence, a market researcher predicts that the number of farmers' markets will increase by 15% each year. If there are 6,200 farmers' markets this year, how many will there be in 10 years? (Round to the nearest whole number if necessary).

• 25,082

• 12,937

• 62,000

• 43,511

Tags

CCSS.HSF-LE.A.1C

Kelsey deposited $30 in a savings account earning 10% interest, compounded annually. To the nearest cent, how much interest will she earn in 3 years?

• $9.93

• $2.01

• $17.60

• $5.75

Tags

CCSS.HSF.BF.A.2

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

Tags

CCSS.HSF.LE.A.2

Is this exponential growth or decay?

• Growth, because of 7
• Decay, because of 1.2
• Growth because of 1.2
• Decay because of 7

Tags

CCSS.HSF-IF.C.8B

Is this exponential growth or decay?

• Growth because a=1
• Decay because b=0.5
• Growth because there is no a
• Neither because a=0

Tags

CCSS.HSF-IF.C.8B

Pick the equation that is exponential decay

• y=2000(0.88)
• y=0.5(1.88)
• y=-4x
• y= -7+10x

Tags

CCSS.HSF-LE.A.1A

Pick the equation that is exponential growth

• y=2(0.5)^x
• y = 0.5(2)^x
• y = .5x - 2
• y = 2x + .5 

Tags

CCSS.HSF-LE.A.1A

A 78 gram sample of Uranium loses half of its mass each year.  What is the exponential equation? 

• y=78(0.5)^x
• y=78(1.5)^x
• y=78(2)^x

Tags

CCSS.HSF.LE.A.2

The population of turtles is doubling every 3 months.  If there are 400 turtles now, how many will there be in 2 years?  (Choose equation)

• y = 400(2)²
• y = 400(2)⁶
• y = 400(2)⁸
• y = 400 + 2(8)

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