$$\(5 A, B\)$$ and $$\(C\)$$ are three points marked on a grid. (a) On the grid, draw the line with equation $$\(x=-3\)$$ Label the line L. (1) $$\(M\)$$ is the midpoint of $$\(A B\)$$. (b) Find the coordinates of $$\(M\)$$. , (2) $$\(D\)$$ is the point so that $$\(A B C D\)$$ is a square. (c) Find the coordinates of $$\(D\)$$. (2)

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