9514 1404 393
Answer:
yes, the lines are perpendicular
Explanation:
A graph of the line through the points (8, -4) and (3, 6) shows it has a slope of -2. That is the opposite reciprocal of the slope of 1/2 that the given line has.
When two lines have opposite reciprocal slopes, they are perpendicular.
The lines are perpendicular.
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If you like you can compute the slope using the slope equation:
m = (y2 -y1)/(x2 -x1)
m = (6 -(-4))/(3 -8) = 10/-5 = -2