Alisha’s teacher usually includes lots of comments on student tests to them understand why their answers were incorrect. these comments are important to alisha’s study guide because a. the comments are the teacher’s ideas but won’t really create a study guide c. the comments could provide insight to the topics the teacher feels are important to study b. the comments will be applied to the student’s final grade d. all of these

Your answer is C. Or the second one, the answers are a bit mixed up. Commenting on a project doesn't exactly focus on a student's grade, but are used to help them develop skills and create a study guide to practice and take insight on the teachers viewing of the course. The answer A. is completely contradicting the question. So D is also out of the question. Your answer again, is C.

to answer your question:

f(x)= a^x.  if x=0, f(x)=1  if x=1, f(x)=a  if x=1, f(x)=a^a