What is the period of the graph?

• $\frac{\pi}{3\ }$

• $\frac{5\pi}{3\ }$

• $\frac{2\pi}{3\ }$

• $2\pi$

What is the equation of the curve?

• $y=-\cos\ 2x$

• $y=\cos\ 2x$

• $y=-\cos\ x$

• $y=\cos\ x$

What is the equation of the curve?

• $y=2\ \sin\ \frac{x}{4\ }$

• $y\ =\ 2\ \cos\ 4x$

• $y\ =\ 2\ \cos\ \frac{x}{4\ }$

• $y\ -\ 2\ \sin\ 4x$

What is the equation of the curve

• $y=-\sin\ 2\pi x$

• $y=\sin\ 2\pi x$

• $y=\cos\ 2\pi x$

• $y=-\sin\ x$

What is the period of the graph?

• 1

• 2

• $\pi$

• $2\pi$

What is the equation of the curve?

• $y=\frac{1}{2}\cos\ 4x$

• $y=\frac{1}{2}\sin\ \frac{x}{4}$

• $y=\frac{1}{2}\sin\ 4x$

• $y=\frac{1}{2}\cos\ 4x$

What is the period of the graph?

• $\frac{5\pi}{4}$

• $\frac{\pi}{4}$

• $\pi$

• $2\pi$

Find the values of a, b and c such that

 $y=a\ \cos bx\ +\ c$  

•  $a=-3,\ b=1,\ c=1$  

•  $a=3,\ b=2,\ c\ =\ 3$  

•  $a=3,\ b=2,\ c=0$  

•  $a=-3,\ b=-2,\ c=3$  

Find the values of a, b and c such that  $y=a\sin bx+c$  

•  $a=-2,\ b=2,\ c=0$  

•  $a=2,\ b=1,\ c=0$  

•  $a=2.\ b=2,\ c=-2$  

•  $a=-1,\ b=-2,\ c=-2$  

Find the values of a, b and c such that $y=a\cos bx+c$  

•  $a=-2,\ b=2,\ c=2$  

•  $a=-2,\ b=1,\ c=0$  

•  $a=-2,\ b=4,\ c=0$  

•  $a=-2,\ b=4,\ c=2$