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Review-Exponential Functions

Mathematics

8th Grade

CCSS covered

Used 1+ times

Review-Exponential Functions
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37 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A particular type of cell doubles in number every hour. Which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? 

 n=4(2)hn=4\left(2\right)^h  

 n=4(12)hn=4\left(\frac{1}{2}\right)^h  

 n=4+(2)hn=4+\left(2\right)^h  

 n=4+(12)hn=4+\left(\frac{1}{2}\right)^h  

Tags

CCSS.HSF.LE.A.2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student used  f(x)=500(1.012)xf\left(x\right)=500\left(1.012\right)^x  to show how the balance in a savings account will increase over time. What does the 500 represent?

The interest the account earned for the first year

The annual interest rate of the savings account

The number of years the savings account has earned interest

The starting balance of the savings account

Tags

CCSS.HSF.LE.B.5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement about the graph  y=13(23)xy=\frac{1}{3}\left(\frac{2}{3}\right)^x  is true?

The graph has a VERTICAL asymptote

The graph crosses the y-axis at  (0,29)\left(0,\frac{2}{9}\right)  

The graph has an asymptote at  y=13y=\frac{1}{3}  

The graph decreases from left to right

Tags

CCSS.HSF-IF.C.7E

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The graph of an exponential function is shown. Which of the following is NOT a true statement?

The domain is the set of all real numbers

The range is the set of all real numbers greater than 0

The equation of the asymptote is at x=0x=0

The graph is decreasing from left to right

Tags

CCSS.HSF-IF.C.7E

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

There are 1,024 players in a Fortnite tournament. In each round, half the players are eliminated. Which function could be used to determine the number of players remaining at the end of x rounds?

f(x)=1,024(1.05)xf\left(x\right)=1,024\left(1.05\right)^x

f(x)=1,024(0.95)xf\left(x\right)=1,024\left(0.95\right)^x

f(x)=1,024(2)xf\left(x\right)=1,024\left(-2\right)^x

f(x)=1,024(0.50)xf\left(x\right)=1,024\left(0.50\right)^x

Tags

CCSS.HSF.LE.A.2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of the y-intercept of the graph of  h(x)=13(2.4)xh\left(x\right)=13\left(2.4\right)^x  ?

2.4

40%

15.4

13

Tags

CCSS.HSF-IF.C.7E

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The graph of an exponential function is shown. Which dashed line represents the asymptote of the function?

Line A

Line B

Line C

Line D

Tags

CCSS.HSF-IF.C.7E

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