Question

I have a picture attached. I dont know which one this is considered "yes" or "no"??

Answer 1

the top left one

Answer 2

@AravindG @texaschic101

Answer 3

Why not graph one? To check one to one use the horizontal line test ie draw a horizontal line and check if it touches the graph more than once.

Answer 4

it technically doesn't go through it more than "once". But it has an open dot and a closed dot and thats what confuses me.

Answer 5

Doesn't go through so no worries. That's the beauty of this test ;)

Answer 6

so the answer is "no"?

Answer 7

It's a one to one function which is not continuous that's all :)

Answer 8

Answer is yes.