Change all of the equations to standard form, then place the number without the variable (y-intercept) on the correct spot on the graph for example the number 6 would be graphed on the top (positive) y-axis. Then when your finished doing that place the number with the variable or just the individual variable as a slope form (rise over run) on the graph, ex: if your slope was 4x you would rise 4 then move to the right 1 bc its 4/1. Your all set.
