thank you all
i am working on this atm.
to solve you find the horizontal (x) intercepts.
so example graph A int is +3
then you find the equation where instead of f(x) etc, 0= the equation with the X value plugged in.
would fit because when you simplify 0=0
it matches. so A would be the equation with f(x)
and continue in the same way
Graph all of them and see which ones cross the x- axis at the same points.