Sorry, maybe I should have added more information. What I'm trying to graph is F=Ma, with 'F' as y, 'M' as the slope, and 'a' as 'x'. In slope intercept form, I had F=Ma+0. The equation is equivalent to 'M', so the equation was plugged in for 'M'. I have 'c' as 2.998x10^8. My full equation, so...