Question 380115
First, plot the point (-1, 4).  Do this by starting at the origin (0, 0), and count left 1 and up 4.  Put a dot there.
Slope means "rise over run".  Recall that 2 is the same as {{{2/1}}}.  This means that for every 2 units you rise (or go up), you will run (go to the right) 1 unit.  You can do that starting from the point (-1, 4).

{{{ graph(300,200,-5,3,-2,8,2x+6)}}}