Use the graph of the polynomial to the right to determine as many zeros as possible graphically. Then use other knowledge to determine the exact values of all zeros you cannot determine graphically. f(x) = 6x4 - 17x³ - 9x² +45x - 25 100 20 -100

A house is purchased for $109,000 and is expected to appreciate $600 per year. (a) Find a polynomial function that will give the value y of the house in x years. y = (b) Find the value of this second house after 12 years.