Which of the following is a function:* I was thinking the answer might be 3) but I am not sure.
1) x = y^2
2) x^2 + y^2 = 36
3) (6,-4), 5,-4), 2,-4)
4) (-4,2), (-4,-3), (-3, 6)

Question

Which of the following is a function:* I was thinking the answer might be 3) but I am not sure.
1) x = y^2
2) x^2 + y^2 = 36
3) (6,-4), 5,-4), 2,-4)
4) (-4,2), (-4,-3), (-3, 6)

anonymous · Answer

What makes number 3 different from number 4?

anonymous · Answer

it doesnt look like any of them are...none of them pass the vertical line test

anonymous · Answer

except number 3 which has an undefined slope

anonymous · Answer

oh, those are lines...i didnt realize

anonymous · Answer

One of them should be.
:(

anonymous · Answer

it looks like 4

anonymous · Answer

(-4,2), (-4,-3), (-3, 6)? ..I would think it wouldn't pass the vertical line test? considering -4 is in the beginning of two (x,y)

zepdrix · Answer

Hmm I don't think number 3 has an undefined slope. It just has a slope of 0! :D
y=0x -4

This passes the vertical line test yes? :D