Explanation Formula used: The formula for slope of the line between two points ( x 1 , y 1 ) and ( x 2 , y 2 ) is m = y 2 − y 1 x 2 − x 1 . The slopes of parallel lines are equal. Calculation: Find the slope of the line between two points ( − a , − 2 b ) and ( 3 a , 6 b ) ,. m 1 = − 2 b − 6 b − a − 3 a = − 8 b − 4 a = 2 b a Find the slope of the line between two points ( 2 a , − 6 b ) and ( 5 a , 0 )

11th Edition

ISBN: 9780134508290

Author: Evans

Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)

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Chapter 21.1, Problem 36E

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Whether the lines through the two pair of points (−a,−2b) and (3a,6b), (2a,−6b) and (5a,0) are parallel or perpendicular.

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Chapter 21.1, Problem 35E

Chapter 21.1, Problem 37E

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Whether the lines through the two pair of points ( − a , − 2 b ) and ( 3 a , 6 b ) , ( 2 a , − 6 b ) and ( 5 a , 0 ) are parallel or perpendicular.

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Whether the lines through the two pair of points (−a,−2b) and (3a,6b), (2a,−6b) and (5a,0) are parallel or perpendicular.

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Chapter 21 Solutions