geometry

equation of a line with the co-ordinates(10,0),(11,2),(12,4),(13,6) and (14,8)

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  1. x1=10 y1=0

    x2=11 y2=2

    y2-y1=2-0=2

    x3=12 y3=4

    y3-y2=4-2=2

    x4=13 y4=6

    y4-y3=2

    x5=14 y5=8

    y5-y4=2

    equation of a line :

    y=2x-20

    Proof:

    x=10
    y=2x-20=2*10-20=20-20=0

    x=11
    y=2x-20=2*11-20=22-20=2

    x=12
    y=2x-20=2*12-20=24-20=4

    x=13
    y=2x-20=2*13-20=26-20=6

    x=14
    y=2x-20=2*14-20=28-20=8

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