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Determine perpendicularity from slopes or distances
Worksheet
Grade Level
Geometry
GEO.149 Determine perpendicularity from slopes or distances
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Line r passes through (-7,2) and (-1,5). Line s is 4x + 2y = 6. Are the lines perpendicular?
A
Yes; line r has slope 1/2 and line s has slope -2.
B
Yes; line r has slope 2 and line s has slope -1/2.
C
No; line r has slope 1/2 and line s has slope 2.
D
No; the point form and equation form cannot be compared.
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