Question

which relation is a function?
(Points : 3)
{(2, 4), (2, -7), (2, 11), (2, -15)}

{(-1, 3), (5, 3), (-6, 7), (9, 0)}

{(0,- 7), (4, -8), (0, -9), (4, -10)}

{(6, 0), (-7, 14), (-2, -5), (-2, 5)}
I think its A

Answer 1

(x,y)
it is A.
because all the x's are the same
:)

Answer 2

could you help with anser?

Answer 3

sure

Answer 4

Use the function to answer the question.
f : X -> 3 - x
What is the value of f(4) ?
(Points : 3)
- 4

- 1

3

7
i think its D

Answer 5

i am pretty sure it is D