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fantastic4100
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If the lines 4y+2x = 5 and 3y +ax = 2 are perpendicular, what is the value of a ? I need help! @Shido88
 one year ago
 one year ago
fantastic4100 Group Title
If the lines 4y+2x = 5 and 3y +ax = 2 are perpendicular, what is the value of a ? I need help! @Shido88
 one year ago
 one year ago

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fantastic4100 Group TitleBest ResponseYou've already chosen the best response.0
@BluFoot please help
 one year ago

BluFoot Group TitleBest ResponseYou've already chosen the best response.2
OK first solve for y in both those equations so they're both in the form of y=mx+b
 one year ago

BluFoot Group TitleBest ResponseYou've already chosen the best response.2
Do that and let me know what you get
 one year ago

Shido88 Group TitleBest ResponseYou've already chosen the best response.0
y= 1/2x 5/4 and y=2/3x2/3 and what else?
 one year ago

BluFoot Group TitleBest ResponseYou've already chosen the best response.2
You should get y=1/2 x 5/4 and y=a/3 x 2/3 Now you want them to be perpendicular. This means that one slope is the negative reciprocal of the other. Slope of first = 1/2 Negative reciprocal of first = 2/1 = 2 Slope of second = a/3 So: 2 = a/3 6 = a a=6 So slope of second = a/3 = (6)/3 = 6/3 = 2 So second line is y = 2 x 2/3
 one year ago
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