The following eneingeering stress-strain data were obtained at the beginning of a tensile test for 0.2% C plain-carbon steel.
a. Plot the engineering stress-strain curve for these data.
b. Determine the 0.2 percent offset yield stress for this steel.
c. Determine the tensile elastic modulus of this steel.

Engr Stress(ksi) Engr Strain (in/in)
0 0
15 0.0005
30 0.01
40 0.0015
50 0.002
60 0.0035
66 0.004
70 0.006
72 0.008