Question

Let f(x) = x2 - 8x + 5. Find f(-1).

Answer 1

Plug in -1 for 'x':

f(-1) = -1^2 - 8(-1) + 5

First multiply -1 * -1

Answer 2

what the answer

Answer 3

@keaira45 what do you think is the answer?

Answer 4

well that's nit the right answer

Answer 5

We can't give direct answers, but we can help

Answer 6

so basically I have to solve ?

Answer 7

What do you think is the answer? It doesn't matter if its right or wrong. I'll help you through the steps. :)

Answer 8

Yes, first plug in the variable.

Answer 9

What would that give you?

Answer 10

That would be F(-1) = -1 x 2 - 8 x -1 + 5 . Now solve that in P.E.M.D.A.S. order

Answer 11

12

Answer 12

Well, i got 11

Answer 13

Do you understand?

Answer 14

we both got the wrong answer

Answer 15

nope

Answer 16

How do you know?

Answer 17

cause that not one of the right answears