Question

A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation. Using this equation, find out the maximum amount of profit the company can make, to the nearest dollar. y=-x^2+78x-543 y=−x 2 +78x−543

Answer 1

978

Explanation:

i checked the anser and it is correct, just want to make sure it's correct :)

Answer 2

978

Explanation:

y= -x²+ 78x - 543

y= ax²+ bx + c

a= -1, b= 78, c= -543

max = c -(b²/4a)

= -543 -(78²/-4)

= -543 + 1521

= 978