Answer:
(9, -4) no
(8, 6) yes
(-1, -3) no
(-2, 8) no
Explanation
x=8 is a vertical line passing the x-axis at 8, thus the ordered pairs that would work all have a x-value of 8:
we can write it like:
(8, y)
the only ordered pair that fits in here is the second one, that is (8, 6) the rest don't
thus the answer is such:
(9, -4) no
(8, 6) yes
(-1, -3) no
(-2, 8) no