Can someone help give me the answer for both

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined