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Question

Need help with this one.

Answer 1

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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