What is the slope of a line on a standard
xy-plane that passes through the point
(1, 3) and (4, –3)?  Choose the most appropriate option:
A) - 1
B) 2
C) - 2
D) 1 / 2
E) - 1 / 2

Rationale: plug the values for the coordinates into the formula for the slope of a line : slope = y 2 - y 1 / x 2 - x 1 = - 3 - 3 / 4 - 1 = - 6 / 3 = - 2 correct answer c ) - 2
Answer: C