The cost C (in dollars) of manufacturing x wheels at Deon's Bicycle Supply is given by the function C(x)= 0.1x^2-60x+22,744. What is the minimum cost of manufacturing wheels? Do not round your answer.

Answer 1

as you know the vertex of a parabola is at x = -b/2a, so here the minimum is at

x = 60/0.2 = 300
So, figure C(300)

Answer 2

For the function f ( x ) =3x+2/5 , find the difference quotient f(a+h)-f(a)/H