Ask Question
29 January, 13:12

How to know if graph is a function

Answers (1)
  1. 29 January, 14:18
    To use the vertical line test, take a ruler or other straight edge and draw a line parallel to the y-axis for any chosen value of x. If the vertical line you drew intersects the graph more than once for any value of x then the graph is not the graph of a function.
Know the Answer?