Question 19 This question has two parts. First, answer Part A. Then, answer Part B. Part A Line p passes through (1, 3) and (4, 7), and line q passes through (0, -2) and (a, b). a. Find the slopes of lines p and q. O A) slope of p : ; slope of q : b-2 O B) slope of p : 4; slope of q : 6+2 O C) slope of q : 4; slope of p : 6+2 O D) slope of p : 4; slope of q : 4+2 Part B b. Find possible values of a and b if pllq. O A) a = 2.7 and b = 3.5 O Bja = 3.2 and b = 2.5 O C) a = 3 and b = 2 O D)a = - and b=