An aerospace engineering student is analyzing the behavior of a high-tensile alloy component. They plot a graph of the extension of the component against the applied tensile force, as shown in Figure 1.
The linear relationship within the elastic region of the component is represented by the mathematical equation of a straight line:
y=mx+c y = mx + c y=mx+cIdentify the physical quantities that y y\,y and x x\,x represent for the graph shown.