Explanation:
Let the points of the given coordinates ( -3 , -1 ) & ( 0 , 3 ) be A and B respectively.

- A ( -3 , -1 ) & B ( 0 , 3 )
Let A ( -3 , -1 ) be ( x₁ , y₁ ) & B ( 0 , 3 ) be ( x₂ , y₂ )

- Slope of the line that passes through the points A ( -3 , -1 ) & B ( 0 , 3 )


~Plug the known values and then simplify !
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