In a function such as sine or cosine, we could also have a translation of the form: \(y = \sin (x - a)^\circ\) where \(a\) is called the phase angle. This is when the graph of the function has ...

Many students think they've solved a trig equation ... the sine graph looks like so that we can see how many solutions we should be expecting: Therefore, from the graph of the function, we can ...