The depth of water at a dock can be modeled as y 3 sin (pi/6x)+ 7. At low tide, the water is 4 feet deep. What is the depth of water at high tide (its
maximum point)?

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.