algebra

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Find the equation of line making equal and positive intercepts on the cordinate axes and passing through the poin (4.5)

  • algebra -

    you know the line is x+y+c=0 and (4,5) is on the line, so

    9+c=0
    c=-9

    x+y-9=0
    the intercepts are (9,0) and (0,9)

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