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Find the slope of the line described by 3x+4y=12

Find the slope of the line described by 3x+4y=12
asked 204k views
3 votes
Find the slope of the line described by 3x+4y=12

asked
User Hannes De Jager
by
8.1k points

2 Answers

6 votes
4y = - 3x + 12

y = -3x/4 + 3

slope = -3/4
answered
User Slhck
by
9.0k points
1 vote
First we have to rearrange the equation.

3x + 4y = 12
4y = -3x + 12

(4y)/(4) =
(-3x)/(4) +
(12)/(4)
y =
(-3)/(4)x + 3

y = mx + b the "m" is the slope

m =
(-3)/(4)
answered
User Gemmakbarlow
by
8.5k points
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