Chapter 8.1, Problem 7E

a).

To determine

To find: whether $p_1$ in span S.

To find: whether $p_1$ in aff S.

b).

To determine

To find: whether $p_2$ in span S.

To find: whether $p_2$ in aff S.

c).

To determine

To find: whether $p_3$ in span S.

To find: whether $p_3$ in aff S.