równanie AB:
y=ax+b
-2=-3a+b
7=3a+b
b=3a-2
7=3a+3a-2
6a=7+2
a=9/6=3/2
....................
b=3*3/2-2=9/2-4/2=5/2
y=3/2x+5/2
.....................
srodek AB=(x;y)
x=(-3+3)/2=0
y=(-2+7)/2=5/2
S=(0,5/2)
równanie symetralnej:
a=-1/3/2=-2/3
y=-2/3x+b
5/2=-2/3*0+b
b=5/2
y=-2/3x+5/2
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równanie AB:
y=ax+b
-2=-3a+b
7=3a+b
b=3a-2
7=3a+3a-2
6a=7+2
a=9/6=3/2
....................
b=3*3/2-2=9/2-4/2=5/2
y=3/2x+5/2
.....................
srodek AB=(x;y)
x=(-3+3)/2=0
y=(-2+7)/2=5/2
S=(0,5/2)
równanie symetralnej:
a=-1/3/2=-2/3
y=-2/3x+b
5/2=-2/3*0+b
b=5/2
y=-2/3x+5/2