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x-liczba metrow
y=60+(x-120) x 1,8
a) y=60+(100-120) x 1,8
y=60-20 x 1,8
y=60-36
y=24 ptk
b) y=60+(120-120) x 1,8
y=60+0 x 1,8
y=60 ptk
c) y=60+(130,5-120) x 1,8
y=60+10,5 x 1,8
y=60+18,9
y=78,9 pkt