Question 373531: Find the slope of 9x + 12y = 4.
12y=-9x+4
why do you then devide by 12? Found 2 solutions by robertb, edjones:Answer by robertb(5830) (Show Source):
You can put this solution on YOUR website! You divide by 12 to write the equation in slope-intercept form y = mx + b. The slope of the line would be m, the y-intercept, b.
The equation then becomes . Thus the slope is -3/4 and the y-intercept is 1/3.
You can put this solution on YOUR website! Because you have to get the equation into the slope-intercept form: y=mx+b
12y=-9x+4
y=-9x/12 + 4/12
=-3x/4 + 1/3
m=-3/4
.
Ed
