f^-1(x)=(x-3)/4 is the inverse function f(x)=y=>y=4x+3 because f(x) is another way of writing y
The earning of the salesperson is an illustration of a linear function.
The possible functions in the two scenarios are:
and 
The function is given as:

When the base salary is increased, a possible function is:

This is so, because 2500 is greater than 2000
When the commission rate is decreased, a possible function is:

This is so, because 0.05 is less than 0.1
So, the possible functions in the two scenarios are:
and 
See attachment for the graphs of both functions
Read more about linear equations at:
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Answer:
(-6,0), (-5,-1), and (-1,-2)
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Step-by-step explanation:
0+3(-3) greater than or equal to -8
-9 greater than or equal to -8
No
-16+3(2) greater than or equal to -8
-10 greater than or equal to -8
No
-6+3(0) greater than or equal to -8
-6 greater than or equal to -8
Yes
-5+3(-1) greater than or equal to -8
-8 greater than or equal to -8
Yes
-1+3(-2) greater than or equal -8
-7 greater than or equal to -8
Yes
V=4/3πr^3, so substitute what you know. Input the volume so you only have to solve one variable, the r, radius.