(2) Graph the following functions by plotting specific points. (a) y = 2 + sin x (b) y = -cos xSOLUTION:
(a) y = 2 + sin x
| x | y |
|---|---|
- | 2 |
| -2 | 1.0907 |
| -/2 | 1 |
| -1 | 1.1585 |
| 0 | 2 |
| 1 | 2.8415 |
| /2 | 3 |
| 2 | 2.9093 |
| | 2 |
(b) y = -cos x
| x | y |
|---|---|
| - | 1 |
| -2 | 0.41615 |
| -/2 | 0 |
| -1 | -0.5403 |
| 0 | -1 |
| 1 | -0.5403 |
| /2 | 0 |
| 2 | 0.41615 |
| | 1 |
