The coordinates of point A are  $\left(.......,\ .......\right)$  

The coordinates of point A are  $\left(.....,\ ......\right)$  

The coordinates of point B are  $\left(......,\ .......\right)$  

Use your graph to solve  $\cos x=0.5$  

 $Use\ the\ graph\ to\ solve\cos x=-0.5$  

 $Use\ the\ graph\ to\ estimate\ the\ solution\left(s\right)\ to\cos x=-0.75$ 

 $One\ solution\ to\ \cos x=0.766\ is\ x=40\degree.$ Use the graph to find the other solution of this equation.