Minimum cost for 1.2x^2-744+126,958

Question

find the minimum value

Answer 1

x= -b/(2a) when using the quadratic function notation (f(x)= ax²+bx+c). If your equation is 1.2x²-744x+126,958, then x = -(-744)/(2(1.2)) = 310. This means that at x=310 is our minimum value.

Since you mentioned cost, I am going to assume this is our dependent variable, existing on the y-axis. If so, we can find the minimum cost by evaluating the function f(310).

f(310) = 1.2(310)²-744(310)+126,958 = 115,320 -230,640 +126,958 = 11,638

Minimum value is at the point (310, 11,638). Minimum cost is most likely $11,638