Answer:
The slope represents the rate of change of earnings in a week for every unitary change in number of doors knocked. For Jessica's function, her earnings change by +7 units for every unit of door she knocks.
Answer:

And we want to know what repreent the value 500 for this equation. If we see the general expression for an exponential function we have:

Where a is the constant or the initial amount, b te base and x the independnet variable (time)
For this special case we know that:

And 500 represent the constant or initial value for the function
Step-by-step explanation:
We have the following function given:

And we want to know what repreent the value 500 for this equation. If we see the general expression for an exponential function we have:

Where a is the constant or the initial amount, b te base and x the independnet variable (time)
For this special case we know that:

And 500 represent the constant or initial value for the function