Asked by KiKi

5x+2y=8
2x+5y=1
is this parallel, perpendicular or niether?
Answered by Damon
5x+2y=8
2x+5y=1

2 y = -5 x + 8
5 y = -2 x + 1

y = (-5/2) x + 8/2
y = (-2/5) x + 1/5

Neither because
slope of -5/2 = 1/(-2/5)
NOT -1/(-2/5)
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