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MariettaO [177]
3 years ago
6

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

Mathematics
2 answers:
jonny [76]3 years ago
6 0
4y = - 3x + 12

y = -3x/4 + 3

slope = -3/4
kicyunya [14]3 years ago
3 0
First we have to rearrange the equation.

3x + 4y = 12
4y = -3x + 12
\frac{4y}{4} = \frac{-3x}{4} +\frac{12}{4}
y = \frac{-3}{4}x + 3

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

m = \frac{-3}{4} 
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