Help ;-; me please;-;

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

Joey is asked to name a quadrilateral that is also a rhombus and has 2 pairs of parallel sides. should be his answer

Graph the system of equations on your graph paper to answer the question. {y=−x+4y=x−2 what is the solution for the system of equations? enter your answer in the boxes.