If a graph is a straight non-verticle line, is it the graph of a function? Use complete sentences to explain your reasoning.

Answer 1

A non vertical straight line on rectangular grid graph paper (not log paper or polar graph paper) is the graph of a function of form y = m x + b where m is the constant slope of the straight line and b is where the line hits the y axis.

Answer 2

Thanks, but I'm confused.