Question

Given f(x)=x and g(x)= -f(x) How are the graphs of f and g related

Answer 1

Explanation:

it is the reflection of the graph of f(x)over x-axis.

Answer 2

f(x) and g(x) would form a big perpendicular X across the coordinate plane, if G(x) = -f(x) then g(x) = -x, draw x and -x out to find the relationship.