Graph Showing Exponential Decay

Which graph shows exponential decay?

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Tags

CCSS.HSF-IF.C.7E

A population of humpback whales has 6,500 whales. Their population is declining such that only 94% of the number of whales remain from the year before. Choose the equation that matches this situation:

Tags

CCSS.HSF.LE.A.2

Someone drops a basketball from a height of 10 feet. Each time it bounces, the bounce height decreases by 1/3. Which statement is correct?

• The decay rate is 1/3

  and the decay factor is 2/3

• The decay rate is 2/3

  and the decay factor is 1/3

Tags

CCSS.HSF.BF.A.2

Which equation represents exponential decay?

Tags

CCSS.HSF-LE.A.1A

The population of Townville is decreasing at a rate of 6% each year. If the starting population was 7,000 what equation represents the current population after x number of years?

Tags

CCSS.HSF.LE.A.2

Jamie's Ford F150 truck was purchased for $29,500. Each year it's worth 80% of what it was worth the year before. Choose the equation that gives the truck's value f(x) after any number of years x.

Tags

CCSS.HSF.LE.A.2

What is the starting value from the table?

• 1620

• 180

• -2

• 0

Tags

CCSS.HSF-LE.A.1B

A 12 inch candle starts to shrink as it melts. It decreases in height by 3% each hour that it burns. Calculate the height of the candle after 4 hours.

• 0.88 inches

• 0.00000972 inches

• 10.62 inches

• 7.78 inches

Tags

CCSS.HSF.BF.A.2