How would i write #30 and #34 into a equations

Which statement holds true for absolute value functions? •the absolute value determines the direction in which theb. the coefficient determines the line along which the graph, the distance between the left and the right arm is based od. the vertex coordinates and the absolute value determine 111

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

Ihonestly have no clue if it's each or none.