Graphing Sine and Cosine

What is the amplitude of the following function?

What is the period of the following function?

What is the midline of the following function?

What are the transformations of g(x)? Select all the apply. $g\left(x\right)=-4\sin2\left(x+\frac{\pi}{2}\right)-5$  

What is the midline of the following function? $y=\frac{1}{2}\cos\left(x-\frac{\pi}{4}\right)+2$  

What is the amplitude of the following function? $y=\frac{1}{2}\cos\left(x-\frac{\pi}{4}\right)+2$  

What is the period of the following function? $y=\frac{1}{2}\cos\left(x-\frac{\pi}{4}\right)+2$  

What are the transformations of  $g\left(x\right)$  ? Select all that apply.
 $g\left(x\right)=\frac{1}{2}\cos\left(x-\frac{\pi}{4}\right)+2$  

Write an equation in the form $y=a\cos bx$  so that the graph has the an amplitude of  $10$  and a period of  $4$  .

Write an equation in the form $y=a\ \sin bx$  so that the graph has the an amplitude of  $2$  and a period of  $2\pi$  .