SOLUTION: Graph 3x+4y=-12

Algebra.Com
Question 209747: Graph 3x+4y=-12
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!

Start with the given equation.


Subtract from both sides.


Rearrange the terms.


Divide both sides by to isolate y.


Break up the fraction.


Reduce.




Looking at we can see that the equation is in slope-intercept form where the slope is and the y-intercept is


Since this tells us that the y-intercept is .Remember the y-intercept is the point where the graph intersects with the y-axis

So we have one point




Now since the slope is comprised of the "rise" over the "run" this means


Also, because the slope is , this means:




which shows us that the rise is -3 and the run is 4. This means that to go from point to point, we can go down 3 and over 4



So starting at , go down 3 units


and to the right 4 units to get to the next point



Now draw a line through these points to graph

So this is the graph of through the points and
RELATED QUESTIONS

graph... (answered by Zoop)
graph... (answered by checkley77)
graph... (answered by jim_thompson5910)
graph... (answered by rothauserc)
graph the inequality 3x-4y... (answered by psbhowmick)
Graph the following inequality. 3x-4y<12 (answered by jim_thompson5910)
sketch graph of equation:... (answered by elima)
3x-4y=12 (sketch and... (answered by HyperBrain)
Graph the inequality: 3x-4y<... (answered by jim_thompson5910)