### Home > CCA2 > Chapter 8 > Lesson 8.3.3 > Problem8-177

8-177.

Graph two cycles of each function.

1. $y = −2\cos(x +\frac { \pi } { 2 })$

What is the amplitude?Where is the locator point? What is the orientation? What is the period?

1. $y = \sin(x -\frac { \pi } { 2 })$

See part (a).