How do you graph 2x + 3y = 9?

1 Answer
Mar 4, 2018

See explanation.

Explanation:

2x+3y=9
3y=9-2x
y=(9+2x)/3

From the type of equation we see that the function will be a straight line that does not pass from the (0,0) point.

You then insert 2 random values for x (x_1 and x_2) and get 2 values for y (y_1 and y_2)

So you have 2 coordinates (x_1,y_1), (x_2,y_2). You mark them as points and draw a straight line that passes through both points.

graph{2x+3y=9 [-10, 10, -5, 5]}