what is the accepted value of the slope of a graph on the applied force vs normal force?
this is grade 11 physics, so give decent answers

Please clarify your question - otherwise we can't give you the "decent answer" you asked for. I'm not sure what you mean by "slope of the graph" - what graph? Perhaps you're asking how to determine the normal force given the applied force? If so, then the answer is you multiply the applied force by the sine of the angle between that force and the surface it is being applied to.