Question

Help please and thank you

Answer 1

120 cars

Explanation:

The given function is

`C(x)=0.5x^2-120x+21,481`

and its parent function would be

`f(x)=ax^2+bx+c`

So,

`a=0.5`

`b = -120`

and

`c = 21,481`

The minimum cost would be found using:

`x = -(b)/(2a)`

So just input a and b into the function:

`x= -(-120)/(2(0.5))`

`x=-(-120)/(1)`

`x = 120`

Therefore there must be 120 cars made to minimize the cost.