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    Lv 7
    2 months ago

    y = -9x + 1

    The equation of the line y₀ perpendicular to y that

    passes through (-7,6) is

                                         // perpendicular slope is the

                   m₀ = ¹⁄₉           // negative reciprocal of -9

                                        

                   y₀ - 6 = ¹⁄₉ (x - -7)

                   y₀ = ¹⁄₉ x + ⁷⁄₉ + 6

                   y₀ = ¹⁄₉ x + ⁶¹⁄₉  ......................ANS

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    The equation of the line y₁ parallel to y that passes

    through (-7,6) is

                   m₁ = -9          // parallel lines have same slope

                   y₁ - 6 = -9 (x - -7)

                   y₁ = -9x - 63 + 6

                   y₁ = -9x - 57    .....................ANS

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