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Slope in Coordinate Geometry
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ACCUPLACER
AAF.158 Slope in Coordinate Geometry
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Line r passes through (-2, 9) and (4, 1). Line q has equation y = 3/4x - 5. Which conclusion is correct?
A
Line r is vertical.
B
Line q is perpendicular to line r.
C
Line q is horizontal.
D
Line q is parallel to line r.
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