If a line's slope is

, the slope of the perpendicular line is

in this case, the given line has a slope 4, which is 4/1, so the perpendicular line has a slope/gradient
It has to be (8, 9) because that would put the 4th corner above (8, 7) and right of (2, 9).
The answer should be 38/7
Answer:
well if you are a boy and don't like long hair then sure... but if you are a girl then don't cut... I mean I like long hairs... but it's your choice so.. ok