Slopes of Parallel and Perpendicular Lines

Question 5 • (A. Costello)WCA 5324 Geometry 1st Nine Weeks 26-27

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Answer

Consider the graph of the line y = x – 4 and the point (−4, 2). The slope of a line parallel to the given line is.:

1/2

A point on the line parallel to the given line, passing through (−4, 2), is .:

(0, 4)

The slope of a line perpendicular to the given line is .:

–2

A point on the line perpendicular to the given line, passing through (−4, 2), is .:

(–2, –2)

Instruction

Lines Cut by a Transversal

Proving Lines Parallel