Question

The company discovered that it costs $45 to produce 2 widgets, $143 to produce 4 widgets, and $869 to produce 10 widgets.

Here is the cost function used to represent this situation in terms of the number of widgets produced:
c(x) = 9x^2 - 5x + 19

Find the total cost of producing 9 widgets.​

Answer 1

c(x)= 9(9)^2-5(9)+19

= 9(81)-45+19

= 729-45+19

= 684+19
= $703 to produce 9 widgets