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What is the slope-intercept of the linear equation x + 4y = 12?

User I Mr Oli I
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2 Answers

3 votes

The slope-intercept form:


y=mx+b

We have x + 4y = 12:


x+4y=12\qquad|\text{subtract x from both sides}\\\\4y=-x+12\qquad|\text{divide both sides by 4}\\\\\boxed{y=(-x+12)/(3)=-(1)/(4)x+3}

User Costa Walcott
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5 votes

solve for y by subtracting x from each side

4y = -x + 12

now divide each side by 4

y = -1/4 x +3

this is the slope intercept form of the equation

the slope is -1/4 and the y intercept is 3

User BlackICE
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