Question

Evaluate the function. f(x)=3x^2 −4x Find f(−1)

Answer 1

7

Explanation:

evaluate the function means substitute x=-1 and calculate

f(x) = 3x²-4x

f(-1) =f(x=-1) = 3(-1)²-4(-1) =3+4 =7, because (-1)²=1 and -4(-1) =4