1. Determine whether the pair of lines is parallel, perpendicular, or neither: (a) 2x + y = 7      2x + y = 8 (b) 2x + y = 9      4x + 2y = 7 (c) 3x - 4y = -3      3x + 4y = 4 (d) y = 3x - 5      3y = 9 - x (e) y = 4 - x      y = x + 4

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter3: Graphs And Functions
Section3.2: Slope Of A Line
Problem 3.46TI: Use slopes to determine if the lines are perpendicular: (a) y=2x5 and x+2y=6 (b) 2x9y=3 and 9x2y=1 .
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1. Determine whether the pair of lines is parallel, perpendicular, or neither:
(a) 2x + y = 7
     2x + y = 8

(b) 2x + y = 9
     4x + 2y = 7

(c) 3x - 4y = -3
     3x + 4y = 4

(d) y = 3x - 5
     3y = 9 - x

(e) y = 4 - x
     y = x + 4

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