Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 4^−x and y = 2^−x+1 intersect are the solutions of the equation 4^−x = 2^−x+1. (4 points) Part B: Make tables to find the solution to 4^−x = 2^−x+1. Take the integer values of x between −2 and 2.

Part C: How can you solve the equation 4^−x = 2^−x+1 graphically?