Understanding Slope

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If you are given 2 points on the line, you can calculate slope using

the slope formula

If 2 lines are perpendicular, then

the slopes are opposite and reciprocals

The slope of the line that passes through the points (5, 1) and (5, -7) is

undefined

The slope of the line x=-5 is

undefined

The slope of a horizontal line is

zero

The slope of the line 2x + 3y =6 is

-2/3

The slope of the line that passes through the points (3, -2) and (-2, 5) is

-7/5

In the equation y = mx +b, the slope is represented by

m

Compare the lines y=1/5x + 3 and y = -1/5x. Are these lines parallel, perpendicular or neither?

niether

If 2 lines are parallel, then

the lines have the same slope


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