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The Slope of A Line Lyrics and Performance by Angela Conley Slideshow by Diane Ford

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Rising up as you look left to right, yeah, that slope must be positive.

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Vertical lines rise but never do run so their slopes, they must be undefined.

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Parallel lines have same slopes, so they never intercept

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If slopes are opposite reciprocals, perpendicular lines have arrived! Rise = 4 Run=3 S l o p e = 4 / 3 Rise = -3 Run= 4 S l o p e = - 3 / 4

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It’s the slope of the line, the trait that identifies ratio of the rise to the run. RISE RUN (x 1,y 1 ) (x 2,y 2 ) It’s the difference of y over the difference of x and you’ve got it what we call the slope… of a line.

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4.4 Slope of a Line. Slope – a measure of how steep a line is. Slope is the ratio of the vertical change to the horizontal change of a non- vertical line.

4.4 Slope of a Line. Slope – a measure of how steep a line is. Slope is the ratio of the vertical change to the horizontal change of a non- vertical line.

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