For this case we have the following quadratic functions:
Revenue: 
Cost: 
Then, we observe that the profit is given by the following mathematical relationship:
Substituting values we have:
Making the corresponding calculations we have:
Answer:
An expression that represents the profit is:
Answer:
Option A
Option B
Option E
Option G
Option A and E go together
and
Option B and G go together.
The answer I believe is the third choice.
3, -2, -7, -12
These all fit into f(n)-5=f(n+1)
So first, you need to find the y intercept and slope of the line/function.
then, you just plug it in to y=mx+b form
this one would be:
slope of -5/4
y intercept: 2
so it would be y=-5/4+2
