Identify+Whether+the+Slope+of+a+Given+Line+is+Positive,+Negative,+Zero,+or+Undefined


 * IDENTIFY WHETHER THE SLOPE OF A GIVEN LINE IS POSITIVE, NEGATIVE, ZERO, OR UNDEFINED.**

A line that rises from left to right has a positive slope. A line that falls from left to right has a negative slope.

The slope of a horizontal line is zero.

The slope of a vertical line is undefined.

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