Exponential functions

Exponential functions

Assessment

Flashcard

Mathematics

8th Grade

Practice Problem

Hard

Created by

Wayground Content

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17 questions

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1.

FLASHCARD QUESTION

Front

What is the range of this function? Options: 0 ≤ y ≤ 26, 0 ≤ y ≤ 3, All Real Numbers, y > 0

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Back

y > 0

2.

FLASHCARD QUESTION

Front

Does the graph represent an exponential growth or an exponential decay function?

Media Image

Back

Exponential Growth

3.

FLASHCARD QUESTION

Front

Which of the following is an increasing exponential function whose y-intercept is 50? Options: y = 50(.05)x, y = 50x - 4, y = (2)x + 50, y = 50(1.4)x

Back

y = 50(1.4)x

4.

FLASHCARD QUESTION

Front

The amount of ants in a colony, f, that is decaying can be modeled by f(x) = 800(.87)x, where x is the number of days since the decay started. By what percentage is the colony decaying?

Back

13%

5.

FLASHCARD QUESTION

Front

The expression 12(1.015)t models the population of elephants in a wildlife refuge after t years since 1975.
Is the population of elephants increasing or decreasing?

Back

Increasing

6.

FLASHCARD QUESTION

Front

In the expression 12(1.015)t, what does the value 12 represent in the context of elephant population in a wildlife refuge?

Back

The initial amount of elephants in the park.

7.

FLASHCARD QUESTION

Front

What does the value 1.015 represent in the expression 12(1.015)t for elephant population growth?

Back

The number of elephants increases by 1.5% each year.

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