## anonymous one year ago how can I tell if something is a function?

1. Nnesha

if the x values repeats then relation isn't a function example $\large\rm (\color{ReD}{2},3)(4,5)(\color{ReD}{2},6)(5,5)$ for graph draw a vertical line if the graph of the equation intersect the vertical line more more than one timez then relation isn't a function

2. Nnesha

|dw:1441660674691:dw|

3. anonymous

|dw:1441660801147:dw| would something like this be a function?

4. Nnesha

draw a vertical line if the graph intersect vertical line more than one time then no

5. Nnesha

got it ??