1. A line through (-2 , y) and (2 , -10) is perpendicular to a line through (-3 , -7) and (5 , -5) Find y.

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. A line through (-2 , y) and (2 , -10) is perpendicular to a line through (-3 , -7) and (5 , -5) Find y.

 

2. The inclination of /1 is arctan ½. If /2 makes an angle of 45° with /1, find the slope of /2.

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