The following graph shows the cost per item of producing ‘x’ items. What is the minimum possible cost? a. $20
b. $1000
c. $20,000
d. $35

true? is that what you're asking or do you mean something else?

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function