Consider the Function $$y = 1 - \cos \frac { \pi x } { 4 }$$

Multiple Choice

Consider the function $$y = 1 - \cos \frac { \pi x } { 4 }$$ on the interval $$[ 0,8 ]$$ . Determine the $$\chi$$ -intercepts by giving the $$\chi$$ -coordinate(s) .

A) $$0,4$$
B) $$0,8$$
C) $$- 4$$
D) $$8$$
E) there are no $$\chi$$ -intercepts