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28 June, 13:38

What is an equation of the line that passes through (-2,3) and is parallel to y=5x + 4. Give your answer in slope intercept form [y=mx+b]

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  1. 28 June, 13:46
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    y = 5x+13

    Step-by-step explanation:

    Slope - intercept form

    y = mx + b, where m is the gradient and b is the y-intercept.

    Parallel lines have the same gradient.

    y = 5x + 4

    Gradient of given line = 5

    Thus, gradient of line = 5

    Subst. m=5 into the equation.

    y = 5x + b

    To find the value of b, substitute a coordinate

    When x = - 2, y=3,

    3 = 5 (-2) + b

    3 = - 10 + b

    b = 3 + 10 (+10 on both sides)

    b = 13

    Thus, the equation of the line is y = 5x + 13.
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