which letter, when drawn on the coordinate plane, could represent a function. The answers are r, o , v, p

Question

Can you explain why v would be correct

Answer 1

A simple visual way to determine if a particular graph is a function is by imagining vertical lines passing through it. If the vertical line touches more than once, it is not a function.

 

r - A line passing through the vertical edge of the r touches many times.

o - A line passing through the middle touches twice

p - Both the vertical line on the left side, and the circular part would touch more than once

 

v - Any vertical line passing through it would touch exactly once. That makes it a function.