Wanted to confirm something about inverse equations and constants

[stuw]

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So question's asking what graph best describes the equation for the young's modulus (stress/pressure). Is it a linear line because the youngs modus is a CONSTANT? Otherwise, inverse equations usually have graphs that look like choice D right? Thanks!

 

[workethic712]

yes young's modulus is a constant; it is used to describe the LINEAR REGION of a substance's deformation of stress vs strain. You can also think of it this way E = Stress/Strain, therefore, Stress = E(Strain) which looks more like y = mx+b

 

[Newlanders]

SPOILER ALERT!!! QUESTION FROM AAMC 11 WITH THE CORRECT ANSWER SHOWN. Darn lol, well there's one I'll be getting right