Ms. Barno found that the slope of the line that passes through the points (-6, 1) and (2, 5) is 2. Her work is below: m=−6−21−5=−8−4=2 Is her work correct or incorrect? If it is correct, justify her work. If it is incorrect, explain her mistake and what the correct answer should be. A Ms. Barno is correct B Ms. Barno is incorrect, the slope should be -2. She forgot her negaitive sign. C Ms. Barno is incorrect, the slope is 12 . She switched the x and y values in the formula. D Ms. Barno is incorrect, the slope is −32 . She did not follow the rule of subtraction.