Are the lines Perpendicular? Explain.(est review) 4 (4, 3) (-4, 2) 2 4. -2 (-5, –3) ▼ (0, -4) 2.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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1. Are the lines Perpendicular? Explain.(estrevie
4
(4, 3)
(-4, 2) 2
4.
(-5, –3)
(0, –4)
A Open notes navigator
2.
Transcribed Image Text:1. Are the lines Perpendicular? Explain.(estrevie 4 (4, 3) (-4, 2) 2 4. (-5, –3) (0, –4) A Open notes navigator 2.
Expert Solution
Step 1

Known fact:

The slope of line joining two points x1,y1  and x2,y2 is m=y2-y1x2-x1.

Two lines are perpendicular if product of their slopes is -1.

Obtain the slope of line l1 joining x1,y1=-4,2  and x2,y2=0,-4 as follows.

m1=-4-20--4m1=-64m1=-32

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