Can someone me with these questions

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

Miranda is braiding her hair.then she will attach beads to the braid.she wants 1_3 of the beads to be red.if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane