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Practice problem

Slopes of Parallel Lines

By Elise Molinaro
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A graph of the line y=-1.9x+1 in red and the line between (3,1) and (1,5) in blue.

The blue line has the equation of y=−1.9x+1y=-1.9x+1, while the points (3,1)(3,1) and (1,5)(1,5) lie on the red line. Are the two lines parallel?

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Type a concept, like “slope” or “photosynthesis”.

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