Superposition and homogeneity - graph analysis

[Matt1234]

Homework Statement

hi guys,
Can someone please help me understand superposition and homogeneity in regards to the following graph.

(current voltage characteristic of a diode)

To be honest i don't understand the terms. The exact question I am asked is Use two test points on Graph to show if the diode satisfies the properties of superposition and homogeneity.

Unfortunately i don't know what either of those are, can someone elaborate?

Thank you for your time.

 

[Matt1234]

I have found that superposition depends on linearity. In this case the relationship does not satisfy the properties of superposition. Can someone confirm? Also would it suffice to take slope with different points and since the slope is not the same I can conclude ita non linear ?

 

[Matt1234]

Bump please