A line that passes through (–1, –4) and (4, k) has a slope = k. What is the value of k?	Choose the correct choice:
A) 3 / 4 B) 1 C) 4 / 3 D) 2 E) 7 / 2

Rationale: "slope = ( y 2 - y 1 ) / ( x 2 - x 1 ) = > k = ( k + 4 ) / ( 4 + 1 ) = > 5 k = k + 4 = > k = 1 ans b it is !"
Answer: B