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April 19, 2015

April 19, 2015

Posted by **Ciscokid** on Friday, January 20, 2012 at 2:58pm.

1. 3x – 2y – 1 = 0

2.5x + y – 12 = 0

3. 4x + 3y – 4 = 0

I cant Figure any of these out or how to do them..

- Math -
**Reiny**, Friday, January 20, 2012 at 3:24pmYou should have learned that the slope of a line is equal to tanØ, where Ø is the angle that the line makes with the positive x-axis

for #1

slope of that line is 3/2

so tanØ = 3/2

Ø = tan^-1 (3/2)

my calculator gave me appr. 56.3°

do the others the same way

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