How do you graph a linear equation?

For example: \(-18x + 9y = 72\)

Basically with the example you have you need to have the x and y variables on different sides. Equation: -18x+9y=72 (now you want to add 18x on both sides) +18x +18x 9y=72+18x (next you divide 9 to both sides to get x and y alone) 9 y=8+2x (now that you have the x and y alone this is the final equation)
On the graph you want to put a dot on 8 since it's the y-intercept or the starting point of the equation. After that you want to add 2 every time you go by 1 on the x-axis. I have a picture of a graph...
I hope this help you out :D

Answered by sydneyhenderson | 2024-06-10

The graph of given equation is shown below. ;

Answered by erinna | 2024-06-24

To graph the linear equation − 18 x + 9 y = 72 , rearrange it to slope-intercept form and find the y-intercept (0,8) and x-intercept (-4,0). Plot these points on a coordinate plane and draw a straight line connecting them. This line represents the graph of the equation.
;

Answered by erinna | 2024-09-30