Exponential Growth and Decay

Exponential Growth and Decay

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Flashcard

Mathematics

9th Grade

Hard

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8 questions

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1.

FLASHCARD QUESTION

Front

Function to determine the number of deer, y, in a population of 1500 decreasing by 1.5% per year at the end of t years? Options: y = 1500(1 - 0.015)t, y = 1500(0.015)t, y = 1500(1 + 0.015)t, y = 1500(1.5)t

Back

y = 1500(1 - 0.015)t

2.

FLASHCARD QUESTION

Front

Function to determine monthly cell phone sales x months after January with 3.75% growth rate. Options: f(x) = 417(3.75)x, f(x) = 417(0.0375)x, f(x) = 417(1.0375)x, f(x) = 417(1.375)x

Back

f(x) = 417(1.0375)x

3.

FLASHCARD QUESTION

Front

Where does the graph start?

Back

The starting value of the car was $12,000.

4.

FLASHCARD QUESTION

Front

Function to model the number of bacteria in a colony of 12,000 decreasing by 14.9% per minute after x minutes?

Back

f(x) = 12000(1 - 0.149)x

5.

FLASHCARD QUESTION

Front

In the equation y = 5000(0.98)x, what does the number 5000 represent?

Back

The amount of money in the account initially

6.

FLASHCARD QUESTION

Front

The function to find the value of a car after t years is given by v(t) = 24,000(.75)t. Which statement is true?

Back

The starting value of the car was $24,000.

7.

FLASHCARD QUESTION

Front

Original value of a painting is $1400, increases by 9% each year. Write exponential growth function.

Back

y=1400(1.09)x

8.

FLASHCARD QUESTION

Front

Function with initial amount of $15 and 35% increase each year: y = 15(35)x, y = 15(1.35)x, y = 15(0.35)x, y = 35(1.15)x

Back

y = 15(1.35)x