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Is y=7x+2 x+7y=8 parallel, perpendicular, or neither?

Is y=7x+2 x+7y=8 parallel, perpendicular, or neither?
asked 198k views
3 votes
Is y=7x+2 x+7y=8 parallel, perpendicular, or neither?

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User Erebus
by
7.8k points

1 Answer

3 votes
rearrange them to slope-intercept form

y = 7x + 2

y = -(1/7) x + 8

product of their slopes is 7 * -1/7 = -1 so they are perpendicular
answered
User Drew Reagan
by
8.4k points
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