Find r so that the line through (2,6) and (-4,r) a).parallel to 2x-3y=4 b). Pendicular to x+2y=1

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
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Chapter2: Parallel Lines
Section2.CT: Test
Problem 6CT
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Find r so that the line through (2,6) and (-4,r)

a).parallel to 2x-3y=4

b). Pendicular to x+2y=1

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