A polynomial function has a fth degree. It has zeros at 2, -1 and 6 only. a) Write ALL 6 possible families of equation for this graph. T3 b) Determine an equation if it passes through the point (1,20) and graph touches the xaxis at 1 and 2. T3 4n....J. \\ / n...-....._.__......L. \\ / D T I I A On a particular day at a boat dock, high tide is 8.5 ft deep and it occurs at 10am. On the same day low tide is 0.5 ft deep and it occurs at 4am. A5 a) Find 2 equations (sine and cosine) for the height of the tide at time t, t hours after midnight, where t=3 is 3am b) What is the water level at 7pm