Algebra

(4,3) and (-1, 03) when I plot these two on a graph they are parellel. Am I correct. How do I find the slope of the line m=___?

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  1. Slope (m)= (y2-y1)/(x2-x1)
    = (3-3)/(4+1)
    m = 0

    Using the point slope formula,
    y-y1 = m (x-x1)
    y-3 = 0 (x-4)
    y-3= 0
    Therefore, y =3 is the equation which is parallel to the x-axis!!

    Hope that helps :)

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  2. for the numberator portion of your answer, subtract the 1st y value from the 2nd y value (remember your ORDER as the same order will apply to the x values later).
    next, do the same for your x values.

    this is what it looks like:

    3- 03 0
    ----- + --- = "0"
    4- (-1) 5

    your slope is zero which means you have a horizontal line

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