Writing and interpreting exponential functions

Which equations describes the relationship months and dollars? d = dollars and m= months

•  $d\ =\ 50\ +\ 250m$  

•  $d\ =\ 50\ \cdot6^m$  

•  $d\ =\ 50\ +\ 6^m$  

•  $d\ =\ 6^m$  

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 Write an equation for the table

•  $y\ =\ 4x\ +\ 8$  

•  $y\ =\ 4\left(3\right)^x$  

•  $y\ =\ 3\left(4\right)^x$  

The table contains some points on the graph of an exponential function. Select the correct exponential function.

The table shows the amount of mold, y, on a surface at various times, x.

Which function could be used to model the amount of mold on the surface after x minutes?

Write the equation that represents the table below:

The person who puts their finger on their nose last answers this question.

The graph of an exponential function contains the points (1, 24) and (2, 144). What is the function?

• $y=4\left(6\right)^x$

• $y=4\left(3\right)^x$

• $y=2\left(6\right)^x$

• $y=4\left(4\right)^x$

The explicit equation for this table is

• a_n = 4n - 1

• a_n = 4ⁿ

• a_n = 3ⁿ

• a_n = 3(4)^{n - 1}

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Write the function for the following table:

• f(x)= -9x-2

• f(x)= -2(-9)^x

• f(x)= -9x+25

• f(x)= 25(-9)^x