What is the slope of the line perpendicular to the line passing through the points (3 , -2) and (4 , 2)?
slope m = $$\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{2+2}{4-3}=4$$
slope of the perpendicular line = -1/m = -1/4.
So the answer is option D.
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