Answer:
6
Explanation:
Let the points be A and B
A ( - 2 , 3 ) -------> ( x1 , x2 )
B ( -4 , -9 ) -------> ( x2 , y2 )
Now, finding the slope:

Plug the values

Calculate

When there is a (-) in front of an expression in parentheses , change the sign of each term in expression

Calculate

Reduce the fraction with -2

Hope this helps..
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