Determine which relation is a function

Question

parissfrance09 · Answer

parissfrance09 · Answer

parissfrance09 · Answer

parissfrance09 · Answer

anonymous · Answer

Just use the vertical line test.

parissfrance09 · Answer

what is that?

anonymous · Answer

Draw a vertical line through the line in the graph, and if the line hits more than one spot, it's not a function.

parissfrance09 · Answer

ok thank you

parissfrance09 · Answer

that means it can either be a b or d

parissfrance09 · Answer

@LegendarySadist

anonymous · Answer

Yes, the answer is among a, b, or d.

parissfrance09 · Answer

so how do i figure that out now?

parissfrance09 · Answer

i mean the answer @LegendarySadist

anonymous · Answer

Try drawing the vertical line through b. |dw:1449064527951:dw|

parissfrance09 · Answer

ok let me look again

parissfrance09 · Answer

i did that its not hitting ab or d?

anonymous · Answer

I just showed you that it hit b in two places. Do you see my drawing?