Question

Please check my answer

Answer 1

What is your question?

Answer 2

Which relations are functions?

Choose all answers that are correct.

A. {(–8, –9), (–5, –5), (1, 3), (3, 6)}

B. {(–3, 0), (–1, 7), (2, 7), (8, 4)}

C. {(0, 10), (0, –5), (1, 4), (3, –2)}

D. {(2, 2), (3, –1), (3, 6), (12, 5)}


My answers are A,C,and D

Answer 3

I think that option D is wrong, since the element \(3\) has more than one image, and it is against the definition of function

Answer 4

for the same reason, also option C is wrong

Answer 5

I see, so you can't have the same x value as well? I thought that it was just the y value I needed to look out for

Answer 6

yes! an element x can only have one and only one image y

Answer 7

Oh okay so A would only be the correct choice

Answer 8

I think that there are two correct options

Answer 9

Option B has two 7's in the y axis

Answer 10

it is ok! since it is not against the definition of function

Answer 11

Really, OK I was watching out for the rule it couldn't be the same. A and B are the two correct answer choices.

Answer 12

that's right!

Answer 13

Thank you so very much :)

Answer 14

:)