SOLUTION: graph the linear equation 6x-3y=18

Algebra ->  Graphs -> SOLUTION: graph the linear equation 6x-3y=18      Log On


   



Question 544851: graph the linear equation
6x-3y=18

Found 2 solutions by saifoo.khan, rapaljer:
Answer by saifoo.khan(162) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
When u have to find y intercepts, put x = 0
When u have to find x intercepts, put y = 0
6x-3y=18
Y intercept =
6x - 3y = 18
6(0) -3y = 18
-3y = 18
y =18/-3
y = -6
So y intercept = -6
=================================

now u have to find y intercepts, put x = 0
6x-3y=18
x intercept =
6x - 3y = 18
6x -3(0) = 18
6x = 18
x =18/6
y = 3
So x intercept = 3


Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Since you know this is a LINEAR graph, LINEAR means STRAIGHT LINE, so you only need TWO points. The easiest points to graph are the points where x=0 and where y=0.

6x-3y=18

Let x=0, and you have -3y=18, so y=-6. The point is (0,-6).

Let y=0, and you have 6x=18, so x=3. The point is (3,0).

Graph these points, and it should look like this:

graph%28300%2C300%2C+-10%2C10%2C-10%2C10%2C+2x-6%29+

For a NON-traditional explanation of Graphing, please see my own website. Click on my tutor name anywhere in algebra.com. This takes you to the homepage of my website. Near the top of my homepage, look for "Basic, Intermediate, and College Algebra: One Step at a Time." Choose Basic Algebra and look in Chapter 4 for topics on Graphing.

I also have FREE videos of me teaching this topic. Look for the link on my homepage called "Rapalje Videos in Living Color." The Video is in Basic Algebra, and the title is "Graphing and Slope of a Line." the video and everything else on the website is FREE.

Since most of my career was spent teaching math IN COLOR, this became a major theme in my teaching career. In case you forget my name or can't remember how to spell it, an easy way to find my website is to go to the link www.mathinlivingcolor.com.

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida