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Horizontal and Vertical Lines

Author: Colleen Atakpu
Video Transcript
Formulas to Know
Slope for Horizontal Lines

m equals fraction numerator y subscript 2 minus y subscript 1 over denominator x subscript 2 minus x subscript 1 end fraction comma space y subscript 2 minus y subscript 1 equals 0

Slope for Vertical Lines

m equals fraction numerator y subscript 2 minus y subscript 1 over denominator x subscript 2 minus x subscript 1 end fraction comma space x subscript 2 minus x subscript 1 equals 0