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October 25, 2014

October 25, 2014

Posted by **karla** on Sunday, November 21, 2010 at 8:50pm.

a) the vectors are parallel

b) the vectors are perpendicular

- math -
**Damon**, Sunday, November 21, 2010 at 9:04pmdy/dx = x/2

dy/dx = -4

if parallel x/2 = -4 so x = -8

if perpendicular x/2 = - (1/-4) = 1/4

so x = 1/2

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