Exponential Growth/Decay Practice Quiz 2024

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

A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?

• 14327
• 4309
• 839
• 7680

Tags

CCSS.HSF-LE.A.1C

A mountain in Scott County is eroding and losing elevation at a rate of 5% every millennium. If the current elevation is 690 meters, how tall will the mountain be in 7 millennia?

If necessary, round your answer to the nearest whole number. (only type number)

Tags

CCSS.HSF-LE.A.1C

The half-life of a radioactive kind of curium is 18 years. How much will be left after 72 years, if you start with 608 grams of it? (only type number)

Tags

CCSS.HSF.LE.A.4

A population of 1500 deer decreases by 1.5% per year. At the end of 10 years, there will be approximately 1290 deer in the population.

Which function can be used to determine the number of deer, y, in this population at the end of t years?

Tags

CCSS.HSF.LE.A.2

There were 417 cell phones sold at an electronics store in January. Since then, cell phone sales at this store have increased at a rate of 3.75% per month.

At this rate of growth, which function can be used to determine the monthly cell phone sales x months after January?

Tags

CCSS.HSF.LE.A.2

A population of fish starts at 8,000 and increases by 6% per year.

What is the fish population in 10 years?

Tags

CCSS.HSF-LE.A.1C

Tags

CCSS.HSF-IF.C.8B

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

• 300
• 1.16
• .16
• x

Tags

CCSS.HSF.LE.B.5