SOLUTION: Solve the system y=x-1 by graphing? y=-4/3x-8

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Solve the system y=x-1 by graphing? y=-4/3x-8       Log On


   



Question 1071417: Solve the system y=x-1 by graphing?
y=-4/3x-8

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Here's the graphs:
+graph%28+400%2C+400%2C+-10%2C+10%2C+-10%2C+10%2C+x+-+1%2C+%28-4%2F3%29%2Ax+-+8+%29+
You can see the line with negative slope goes through
( -6, 0 ) and
( 0, -8 )
------------------
The line with positive slope goes through
( 1, 0 ) and
( 0, -1 )
------------------
All you need is 2 points to plot a line, so you are done
-----------------------
Here's how to get ( -6, 0 )
Let +y+=+0+
+0+=+%28-4%2F3%29%2Ax+-+8+
+%284%2F3%29%2Ax+=+-8+
+x+=+%283%2F4%29%2A%28-8%29+
+x+=+-6+
----------------------
Just follow this method