9. [15 pts] Consider the line segments connecting points pā and pā in each of the following
scenarios. Find a vector v = (x, y) that represents these line segments.
a. pā= (4, 3) and p2 = (3, 5)
b. pā = (-5, 2) and pā = (5, 4)
c. pā = (6, 0) and p2 = (7, 0)
d. pā= (4,-1) and p2 = (-5, -10)