How do I find the functions here?

no, x cannot be the same number. in all of them, x is 1. for one input there is another output. g is not a function

give brainliest

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.