Question

if 200 units sold results in $4,400 profit and 250 units sold results in $7,250 profit, write the profit function for this company.

Answer 1

First find the slope:
m=(7250-4400)/(250-200)
m=2850/50
m=57
Then we find the y intercept
4400=11400+b
b=-7000
Therefore the profit is 57x-7000
x is the number of units sold