URGENT Which, if any, of the following equations defines y as a function of x?

A y=x^2

B y^2= 4 - x^2

C y = ±√1 − 2x

rx and sx

step-by-step explanation:

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.