JavaScript is off, so this frame is a still image: the complete figure — a single straight demand line from its price-axis intercept to its quantity-axis intercept, with a point (M, P) and its companion point (M′, P′) one unit behind it, each with droplines to both axes, and a readout showing the midpoint-formula elasticity for that step (here e = 1.00, unit elastic). There is no separate static figure to open; the image above is the whole thing.