Question

C(x) = -5x^2+x
Find c(4)

Answer 1

c(4) = -76

Explanation:

c(x) x=4 so plug 4 in for x

-5(4)² + (4)

Do parentheses first so... 4² = 16

-5(16) + 4

-5(16) = -80

-80+4 = -76

c(4) = -76