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

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fantastic4100
 3 years ago
Best ResponseYou've already chosen the best response.0@BluFoot please help

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

BluFoot
 3 years ago
Best ResponseYou've already chosen the best response.2Do that and let me know what you get

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

BluFoot
 3 years ago
Best ResponseYou've already chosen the best response.2You 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
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