please explain and answer 1-2 on line paper it is sinusoidal application question

Snow your ininking In previous units, you created screencasts to demonstrate your understanding of a variety of concepts. In this activity, you will create screencasts to demonstrate your understanding of sinusoidal functions. Create screencasts for each of the following: (we're going to pretend that Wasaga Beach is impacted by tides!) 1. You are on the beach in Wasaga Beach, Ontario. At 2:00 PM on June 15th, the tide is high. At that time you find that the depth at the end of the pier is 1.5 meters. At 8:00 pm the same day, the tide is low, and you find that the depth of the water is 1.1 meters. Assuming the depth of the water varies sinusoidally with time: a) Identify the key features of the sinusoidal function, and use them to sketch a graph showing two tide cycles. b) Determine an equation to represent the tide in Wasaga Beach. c) Determine the height of the water at 11:00 PM the same day. d) Determine the first two times after high tide where the height of the water is 1.2 metres. 2. For the function identified below: a) state the key features for one cycle of the transformed function b) identify the transformations being applied to the base function y = sint, c) sketch the transformed function. -- 15-3 Submit your screencasts to your teacher