A tension test was performed on a magnesium alloy specimen having a diameter 0.5 in. and gauge length 2 in. The resulting stress–strain diagram is shown in the figure. Determine the approximate modulus of elasticity and the yield strength of the alloy using the 0.2% strain offset method.

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(ksi) 40 35 30 25 20 15 10 10 5 0 0.002 0.004 0.006 - (in./in.) 0.008 0.010