Question

If f(x) = x2 − 6x + 3 x − 1 , what is f(−1)?

Answer 1

f(-1)=(-1)2-6(-1)+3(-1)-1=3

Answer 2

We can simplify the functon expression:

`f(x) = x^2-6x+3x-1 = x^2-3x-1`

To evaluate the function at
`x=-1` we simply have to plug the desired value in the expression:

`f(-1) = (-1)^2-3(-1)-1 = 1+3-1 = 3`