EXERCISES Finding the area of the plane region. Draw a sketch of the graph of each of the following 1. Find the area of the plane region bounded by y = x + 1, x = 1, x = 3, and the x - axis. 2. Find the area of the plane region bounded by y = x + 2, x = -1, x = 1, and the x - axis. 3. Find the area of the plane region bounded by y = -x + 2 and y = x - 4.EXERCISES Solve the following problems. Show your complete solution. 1. John inherited from his grandfather a lot area bounded by y = x - 1, x = -4, x = 1, x = 7, and the x - axis. The unit of measure of the area of the plane region is in meters. Find the area of the plane region. How many meters of fencing materials are needed to enclose John's property? 2. Consider the problem in number 1. John's lot is situated in the heart of Region VI. The cost of the area of the lot per square meter is P20,000. How much money will John have if he decides to sell his piece of land? 3. Maria has a parcel of land in Boracay Island. She wanted to get the total area of the lot so that she can sell it at P60,000.00 per square meter. The boundaries of Maria's lot are the curves x = y + 2 and x = y2 - 4. Find the area of the plane region bounded by the two curves. How much is the cost of Maria's lot