Question 185460
The standard line formula is: Y=mX+b where m=the slope & b=the y intercept.
If the slope is positive the line goes up to the right.
If the slope is Negative it goes up to the left.
2x-y = 6  
-y=-2x+6
y=2x-6 (red line)
x-y = 5
-y=-x+5
y=x+5 (green line)
{{{ graph( 300, 200, -6, 5, -10, 10, 2x -6, x +5) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions 2x -6 and x +5).