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OpenStudy (anonymous):
Find the slope and y-intercept of each line. 4x+14y= 21
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OpenStudy (dumbcow):
solve for y
OpenStudy (dumbcow):
once you get it in y= mx +b form m -> slope b-> y-intercept
Directrix (directrix):
4x+14y= 21 ========== 14y = 21 - 4x y = 21/14 - (4/14) x y = 3/2 -(2/7) x y = -(2/7) x + 3/2 slope: -2/7; y-intercept: 3/2 http://www.wolframalpha.com/input/?i=4x%2B14y%3D+21
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