what is an equation in slope intercept form for the line that passes through the points (1,-3) and (3,1)

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what is an equation in slope intercept form for the line that passes through the points (1,-3) and (3,1)

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Aaliyah 1 week 2021-09-10T23:42:29+00:00 1 Answer 0

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    2021-09-10T23:43:49+00:00

    y=2x-5.
    I found the slope using the formula m=y2-y1/x2-x1.
    m=-3-1/1-3=-4/-2=2.

    I used (3,1) (only use one point, your choice) to find out b. 3=x, 1=y.
    y=mx+b is the formula for slope intercept equations, so I plugged in the x and y.
    1=2(3)+b; 1=6+b, subtract 6 on both sides and get -5=b.
    I used the information to get y=2x-5.
    Hope this isn’t too confusing! πŸ™‚

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