SOLUTION: The profit P (in dollars) on each cellular phone manufactured by Clear Line Inc., is related to the number of cellular phones produced by each day according to the equation P=0.82x

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: The profit P (in dollars) on each cellular phone manufactured by Clear Line Inc., is related to the number of cellular phones produced by each day according to the equation P=0.82x      Log On


   

Question 984044: The profit P (in dollars) on each cellular phone manufactured by Clear Line Inc., is related to the number of cellular phones produced by each day according to the equation P=0.82x^2 + 4.25 + 45 where x is the number of cellular phones produced by each day (in hundreds) and 2 is less than and equal to x and less than and equal to 8.
a. Find the profit per cellular phone if 400 cellular phones are produced per day.
b. About how many cellular phones should be produced each day to make a profit of $70 per phone?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


a. Calculate

b. Set equal to zero and solve for the root that is in the interval

By the way, I suspect you have a typo in your function.

John

My calculator said it, I believe it, that settles it