Answer:
x-intercept = (3,0)
y-intercept = (0,-4)
Explanation:
First we must convert 12x - 9y = 36 to slope intercept form, which is written as y=mx+b (where m is slope and b is y-intercept).
So we will now subtract 12x on both sides to get -9y = -12x + 36. Next we will divide -9 on both sides in order to isolate y.
Now we have:
(Don't forget to simplify):
y = 12/9x - 4 becomes y = 4/3x - 4
Now, since b is the y-intercept and -4 is in the position of b, we can tell that -4 is the y-intercept. So it will be written as (0, -4), since ordered pairs are written in the form (x,y).
So to recap:
The x-intercept is (3,0) because this is the point in which the line crosses the x-axis. Therefore when the x-coordinate is 3, the y-coordinate must be 0.
The y-intercept is (0,-4) because since the equation is now in y=mx+b, we know that -4 is in the position of b, and so therefore it must be the y-intercept. Additionally coordinates are always written as (x,y).
Hope this helps you :)