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A= (2, -1) --> x=2 y= -1
podstawiamy x i y do równania prostej:
-1= -8(2m-7)
-1= -16m +56
-16m= -57
m= 57/16
a=(2,-1). Oznacza to, że 2=x, a -1=y
Podstawiamy te wartości.
-1=-8(2m-7)
-1=-16m+56
-57=-16m
16m=57
m=3,5625
Pozdrawiam,
Kluuuuska ;)