I need this answer asap

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20