If f(x) = -2x^2 + x - 5, what is f(3)?

Answer 1

You will substitute is 3 in place of x in the equation and solve following the order of operations. .

f(3) = -2x^2 + x - 5

f(3) = -2(3)^2 + 3 - 5

f(3) = -2(9) + 3 - 5

f(3) = -18 + -2

f(3) = -20