### Home > A2C > Chapter 8 > Lesson 8.1.4 > Problem 8-66

8-66.

Daniel sketched the graphs below for *y* = sin *θ* and *y* = cos *θ*.

Unfortunately, he forgot to label the graphs, and now he cannot remember which graph goes with which equation. Explain to Daniel how he can tell (and remember!) which graph is *y* = sin *θ* and which is *y* = cos *θ*. Homework Help ✎

Look at the *y*-intercepts. What is cos(0°)? sin(0°)?