Draw an approximate plot of v(t) = e t/ for t > 0 Identify the initial point

Draw an approximate plot of v(t) = e^−t/τ for t > 0

Identify the initial point A (t = 0, v = 1) of the curve and the intersection B of its tangent with the t axis at t = τ. Draw the tangent line AB. Two additional points C and D located at t = τ and t = 2τ, with heights of 0.368 and 0.368² = 0.135, respectively, also belong to the curve.