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1 December, 01:11

Write an equation of the line that has a slope of 2 and goes through (4, - 1).

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  1. 1 December, 02:13
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    y = 2x - 9

    Step-by-step explanation:

    The equation of a line in slope - intercept form is

    y = mx + c (m is the slope and c the y - intercept)

    Here m = 2, thus

    y = 2x + c ← is the partial equation

    To find c substitute (4, - 1) into the partial equation

    - 1 = 8 + c ⇒ c = - 1 - 8 = - 9

    y = 2x - 9 ← equation of line
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