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Mathematics 21 Online
OpenStudy (anonymous):

help! :( medal to correct answer with explanation

OpenStudy (anonymous):

What's the question?

OpenStudy (anonymous):

OpenStudy (anonymous):

ok. do you remember how to determine the slope of a parallel vs perpendicular lines?

OpenStudy (anonymous):

not really :/

OpenStudy (anonymous):

ok. So if you're given the equation of a line and asked to find one perpendicular the slope of the new line is the negative reciprocal.

OpenStudy (anonymous):

When you want a parallel line, the slopes are equal

OpenStudy (anonymous):

So, here we are looking for a parallel line

OpenStudy (anonymous):

i mean perpendicular

OpenStudy (anonymous):

Do you know what negative reciprocal means?

OpenStudy (anonymous):

not really

OpenStudy (mertsj):

What is the slope of the given line?

OpenStudy (anonymous):

i came up with b

OpenStudy (anonymous):

ok what is the slope of the original line? can you tell?

OpenStudy (mertsj):

me too. B is correct.

OpenStudy (mertsj):

Good job!!

OpenStudy (anonymous):

Since the original slope is -1/5, the negative reciprocal is 5

OpenStudy (anonymous):

sorry

OpenStudy (mertsj):

@donny471 The original slope is + 1/5

OpenStudy (anonymous):

slope is 1/5 so negative reciprocal is -5

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