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The line joining P(7,2) and Q(-2,3) cuts the x-axis at_____?
Answer= (x,y)
find x and y

  • maths -

    Since x increased by 9 when y decreased by 1, when y decreases 2 more to 0, x will increase 18 more, to 25.

    algebraically,
    the slope is -1/9, so

    y = -1/9 x + c
    since (7,2) is on the line,
    2 = -7/9 + c
    c = 25/9

    y = -1/9 x + 25/9
    when y=0,
    -1/9 x + 25/9 = 0
    x = 25

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