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How do you write 3x + 4y = 20 in slope intercept form?

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i need help on slope and intercecpt form.

slope-intercept-form

asked Feb 26, 2014 in ALGEBRA 1 by dkinz Apprentice

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1 Answer

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Slope intercept form y = mx+b.

Given line 3x+4y = 20

subtract 3x from each side.

3x-3x+4y = -3x+20

4y = -3x+20

Divide to each side by 4.

4y/4 = (-3/4)x+20/4

y = (-3/4)x+5

answered Feb 26, 2014 by david Expert

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