Answer:
D. m=-4/7
Explanation:
To find a slope with 2 points use the formula m=(y2-y1)/(x2-x1)
X is the first number in the parenthesis and Y is the second
A includes X1 and Y1 and B includes X2 and Y2
substitute your numbers into the equation to make
7-3/2-9 then you just subtract to get 4/-7 or -4/7