algebra

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Write an equation of the line, in the form of y = mx + b that passes through the given points.

3. (0,5),(-2,0)
5. (1,4),(3,8)

  • algebra -

    slope is change in y divided by change in x
    0-5=-5=y
    -2-0=-2=x
    5/2 is slope
    so we have y=5/2x + b
    plug in the point 0,5
    now we have 5=5/2(0) + b
    b=5.
    the same for the next problem.

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