How do you graph 3x+2y=6 by plotting points?

1 Answer
May 22, 2018

See a solution process below:

Explanation:

First, solve for two points which solve the equation and plot these points:

First Point: For x = 0

(3 * 0) + 2y = 6

0 + 2y = 6

2y = 6

(2y)/color(red)(2) = 6/color(red)(2)

y = 3 or (0, 3)

Second Point: For y = 0

3x + (2 * 0) = 6

3x + 0 = 6

3x = 6

(3x)/color(red)(3) = 6/color(red)(3)

x = 2 or (2, 0)

We can next plot the two points on the coordinate plane:

graph{(x^2+(y-3)^2-0.035)((x-2)^2+y^2-0.035)=0 [-10, 10, -5, 5]}

Now, we can draw a straight line through the two points to graph the line:

graph{(3x + 2y - 6)(x^2+(y-3)^2-0.035)((x-2)^2+y^2-0.035)=0 [-10, 10, -5, 5]}