Posted by **MR. BILL** on Tuesday, December 6, 2011 at 6:38pm.

Which equation represents the perpendicular bisector of AB whose endpoints are A(8,2) and B(0,6)?

10 y=2x-4

20 y=-1/2x=2

3) y=-1/2x =6

4)y=2x-12

So I did Delta Y over Delta X and got -4/8 or -.5. Since it says perpendicular I made it the opposite sign and flipped it and got 8/4 or 2. Then I plugged it into y=mx+b. I plugged it in using B and did 6=2(o)=b and got 6 for b but 2x-6 isn't an answer choice. SO then I used A and got 2=2(8)=b and got b = -14 which is also not an answer choice.

What am i doing wrong?

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