Draw the unit circle and plot the point P=(7,2). Observe there are TWO lines tangent to the circle passing through the point P. Answer the questions below with 3 decimal places of accuracy. P L1 (a) The line L1 is tangent to the unit circle at the point (b) The tangent line L1 has equation: y = + (c) The line L2 is tangent to the unit circle at the point ( (d) The tangent line L2 has equation: y = x +