Functions, equations and graphs?
Which set of ordered pairs in the form (x,y) does NOT represent a function of x?
{(0,2), (1,-1), (2,3), (3,-2)}
{(0,-2), (1,-1), (2,3), (3,-2)}
{(0,2), (-1,-1), (2,-3), (3,2)}
{(0,2), (1,2), (1,-2), (3,2)}

Question

Functions, equations and graphs?
Which set of ordered pairs in the form (x,y) does NOT represent a function of x?
{(0,2), (1,-1), (2,3), (3,-2)}
{(0,-2), (1,-1), (2,3), (3,-2)}
{(0,2), (-1,-1), (2,-3), (3,2)}
{(0,2), (1,2), (1,-2), (3,2)}

zzr0ck3r · Answer

if you have one x value that "goes" with more than one y value then it is not a function.

ravenxcx · Answer

So which one would that be? I'm still confused...

ravenxcx · Answer

@zzr0ck3r

astrophysics · Answer

As zz mentioned a function can not have repeating y's for x's, so you can't have something like { (0,2), (1,-1), (2,2), (0,3) } notice how there's 0 in x twice and with two separate y's you can't have that.

Note: Coordinates are written as (x,y)