### Home > CCA2 > Chapter 9 > Lesson 9.3.1 > Problem9-82

9-82.

Graph each of the following trig functions. 9-82 HW eTool (Desmos).

1. $y = 2$sin$(x)$ and $y =$ cos$(x)$ on the same set of axes.

Review the Math Notes box in Lesson 7.2.4.

2. Use your answer to part (a) to graph $y = 2$sin$(x) +$ cos$(x)$.

Try adding and then graphing the $y$-values of each function for each $\frac{\pi}{2}$ multiple of $x$.