equation graphs query?

[carl1]

the maximum kinetic energy of a photoelectron, Ek,max , to the smallest amount of energy, E0, needed to free an electron from the metal, and the energy, Eph , of the incident photons of light: Ek,max = Eph – E0

 

In addition, you know that Eph = hf where h is the Planck constant and f is the frequency of the incident light.

 

Which one of the following graphs represents the relationship between Ek,max and f ?

 

please help answer due tomorrow. Carl1.

[Bignose]

This forum doesn't do homework for people, but we will help you.

 

Which one do you think it is, and why?

 

If you don't have any idea, which one(s) can you definitely eliminate and why?

 

Are there any properties of the quantities being graphed that helps you determine which graphs can be eliminated?