Question

Which relation is a function?

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Answer 1

@linda3 I need some help! Could you help?

Answer 2

Hi there again. You can take what I told you and apply it to graphs. A function cannot have two y values for the same x value. Soooooooo
When looking at graphs, use the VERTICAL LINE TEST!
If you draw a line vertically through a graph and it goes through two points, it is NOT a function.

Answer 3

So, same applies graphs?? Didn't see that in my lesson!

Answer 4

That's sad to hear, but yes. The Vertical Line Test never fails! :)

Answer 5

Graphs are functions that are plotted as points, and the points are connected by lines.

Answer 6

I see