SOLUTION: Graph 3x + 5y = 12 by the slope intercept method. Thanks

Algebra ->  Linear-equations -> SOLUTION: Graph 3x + 5y = 12 by the slope intercept method. Thanks       Log On


   



Question 57570: Graph
3x + 5y = 12 by the slope intercept method.
Thanks

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Graph
3x + 5y = 12 by the slope intercept method.
In order to use the slope intercept methos=d, we must put the equation into slope intercept form: highlight%28y=mx%2Bb%29, where m=slope, and (0,b)=y-intercept.
-3x+3x+5y=-3x+12
5y=-3x+12
5y%2F5=-3x%2F5%2B12%2F5
y=%28-3%2F5%29x%2B12%2F5
The y-intercept is: (0,12/5) which is (0,2 2/5), because your y-intercept is a fraction you wouldn't want to use this method unless your instructions said you had to,
Plot (0,2 2/5) this is a little less than half way to 3 on the y-axis.
From that point use your slope: m=-3%2F5. Slope is rise/run, so rise -3 (go down 3 units) and run 5 (go right 5 units) and plot a second point. (this should be (5, -3/5).)
The graph should look like this:
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C%28-3%2F5%29x%2B12%2F5%29
Happy Calculating!!!