A $270,000 building Is depreciated by Its owner. The value y of the building after x months of use is y = 270,000 1500x. (a) Graph this function for x 2 0. y y 400 000 400000 300000 300 000 200 000 200000 100000 100000 50 100 150 200 50 100 150 200 400000 400000 300 000 300 000 200000 200 000 100 000 100 000 50 100 150 200 50 100 150 200 (b) How long is it until the building is completely depreciated (its value is zero)? months (c) The point (30, 225,000) lies on the graph. Explain what this means. The point (30, 225,000) means that after months the value of the building will be $