Arturo O. answered • 01/16/18

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Parallel means it has the same slope.

m = 3/7

In point-slope form, the equation of the line is

y + 6 = (3/7)(x - 9)

Perpendicular means its slope must be -1/(3/7) = -7/3

In point-slope from, the equation of the line is

y + 6 = (-7/3)(x - 9)