Question 970918
y=2x-4
y=6x+4

The first has a slope of +2 and crosses the y-axis at -4.

The second has a steeper slope of +6 and crosses the y-axis at +4

Both go to the right 1 unit; one goes up only 2 units, the other 6 units..

{{{ graph (300,300,-10,10,-10,10,2x-4,6x+4)}}}