Use the graph and data table below to determine:

Stress Strain Curve

a$)$ Proportional limits: $($stress in units of psi, strain in units of in$/$in$)$

b$)$ Modulus of elasticity $($units: ksi$)$

c$)$ Ultimate strength $($units: psi$)$

d$)$ Rupture strength $($units: psi$)$