questions 21 and 22

etric Functions Assignment Chapter 5 3.pdf (page 4 of 6) - Edited V A Short Answer [Thinking 10 marks] Show all calculations using proper mathematical notations. Simplify and justify your solutions. 21. Consider the function y - -3 sin [2(x - 30)] - 2. [5 marks--1 mark each] a) What is the amplitude? b) What is the period? c) Describe the phase shift. d) Describe the vertical shift. Page 3 of 6 Full Name: Class MCR3U1 e) Graph the function for the interval 0 S x $ 360. 22. Consider the function y = -3 cos (2x + 1200) - 1. a) Determine the amplitude, the period, the phase shift, and the vertical translation of the function with respect to y = cos x. [4 marks] b) Explain why the phase shift is not 120. [1 mark]