Question

Find the zeros of the function.

f(x) = x2 - 6x + 8

-4 and 2
4 and 2
-4 and -2
4 and -2

Answer 1

\[0 = x^2 - 6x +8\]

Answer 2

when y=f(x) = 0 , the function will cross the x-axis

Answer 3

can you factor that, or use quadratic form

Answer 4

the answers are whole numbers, so it will go into

0 = (x + ) *(x - )