A common form of a linear equation in the two variables x and y is:
y=mx+b
where m and b designate constants.
In you case:
9x+3y=15
3y=15-9x Diwide wit 3
y=-3x+5
-6x-4y=-8
-4y=-8+6x Divide with -4
y=-(6/4)x+2
y=-(3/2)x+2
y=-1.5*x+2
In google type:
functions graphs online
When you see list of results click on:
rechneronline.de/function-graphs/
When page be open in blue rectacangle type: -3x+5
in gray rectacangle type: -1.5*x+2
and click option Draw
You will see graphs
how to graph the equations 9x+3y=15 and -6x-4y=-8
1 answer