Slope Worksheets With Answers - Chapter 4.4 Parallel And Perpendicular Lines Page 13

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The slope of 2x
6y = 12 is
.
4-4 Parallel and Perpendicular Lines
The slopes of 3x
9y = 9, 3y = x + 12, and 2x
6y = 12 are all equal, so they are all parallel.
Write an equation in slope-intercept form for the line that passes through the given point and is
perpendicular to the graph of the equation.
( 3, 2), y = 2x + 4
The slope of the line with equation y = 2x + 4 is 2. The slope of the perpendicular line is the opposite reciprocal of
2, or
.
(-5, 2),
The slope of the line with equation
is
, or 2.
( 4, 5),
The slope of the line with equation
is . The slope of the perpendicular line is the opposite reciprocal of ,
or 3.
Page 13
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