which of the following sets of ordered pairs is not a function?
A. (1,2) (2,3) (3,2)
B. (1,1) (2,-1) (-1,2)(-2,-2)
C. (0,0) (3,0) (-3,0)
D. (1,1) (2,2) (3,3) (2,-1)
E. none of these

Isn't D the correct answer choice?

Question

which of the following sets of ordered pairs is not a function?
A. (1,2) (2,3) (3,2) 
B. (1,1) (2,-1) (-1,2)(-2,-2)
C. (0,0) (3,0) (-3,0)
D. (1,1) (2,2) (3,3) (2,-1)
E. none of these

Isn't D the correct answer choice?

nnesha · Answer

look at your x values if there x's repeat then relation is not a function

anonymous · Answer

That's what i did, and D is the only one with repeated x values, so it is the correct choice then..right?

nnesha · Answer

yesh

nnesha · Answer

that's right

anonymous · Answer

Yes D is correct due to the x values

nnesha · Answer

i thought there are only 4 answer choices and

nnesha · Answer

yesh good job D is right bec there two times 2

anonymous · Answer

Alright, thank you! just wanted to make sure. for some reason i forgot whether it was repeats of the x or y value...i was pretty confident it was the x value but wanted to be sure.