Algebra Help?

A piecewise-defined function is graphed below.

https://wca.sooschools.com/media/g_alg02_ccss_2015/9/img_alg2_9_2b_11_graphing.gif

Which of the following statements are true for this function? Select all that apply.

A. The function is discontinuous at x = -1

B. The function is discontinuous at x = 1.

C. The value of the function is never negative.

D. x = 1 is not in the domain of the function.

E. The value of the function at x = -1 is 0.

F. The value of the function at x = 1 is 0.