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14 February, 09:31

Write an equation of the line perpendicular to 6x + 7y=126, through (7,8).

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  1. 14 February, 12:05
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    y = 7/6 * x - 1/6

    Step-by-step explanation:

    6x + 7y = 126

    y = ( - 6/7) * x + 18

    slope: - 6/7

    A line perpendicular to another has a slope that is the negative reciprocal of the slope of the other line

    slope' : 7/6

    y = mx + b

    8 = 7/6 * 7 + b

    b = (48-49) / 6 = - 1/6

    equation: y = 7/6 * x - 1/6
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