Example: "y"=–2"x"+4. Substituting "x"=0 we get "y"=4 (this is the "y"-intercept) and thus the point (0,4). Substituting "x"=1, we get "y"=2 and thus the point (1,2). Plot these points and draw the line. (Notice that the 2nd point is 1 to the right and 2 down from the 1st point. As we said in the above example, this happens because the slope is "m"= –2)