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Use (Y2-Y1)/(X2-X1) to find the slopes of each lines. If one is the negative reciprocal of the other, then they are perpendicular.
so is the answer a cause their slopes are different?
I dont like math -.- im going with B
oh crap i meant C
cause if thier slopes are different then its not perpendicular. its C
No im great with every other class i just hate math!
He's right. You're lazy.
I gave you the procedure, follow it!
omg fine give me a second!
So its -2/3
and since on is negative they are perpendicular?
Ok the slope of the first one is -2/3. What about the second one?
oh wait hold on
So -2/3 and 1/8 and those are perpendicular right cause one is a negative?
I thought if something had the same slope than meant it was perpendicular?
They're not perpendicular because one is not the negative reciprocal of the other.
If they were 2/3 and -3/2, they would be perpendicular. Or 7/8 and -8/7. Or 15/100 and -100/15
Same slope = parallel
what exactly does that mean -.- i feel so dumb im 18 and dont know this pellet
Negative reciprocal means you invert the fraction and make it negative. So can you find the negative reciprocal of 5/6?
Good :) So if the slopes aren't negative reciprocals of each other, they're not perpendicular!
ohh so the answer is B woop yay :D
you are awesome :) Thanks so much!