If $A\left( -6,1 \right)$, $B(-4,3)$ and $C\left( -7,9 \right)$ are three vertices of a p

Question

If $A\left( -6,1 \right)$, $B(-4,3)$ and $C\left( -7,9 \right)$ are three vertices of a parallelogram $ABCD$, find the midpoint of $AC$, find the coordinates of $D$.

Accepted Answer

Midpoint of $AC$: $\left(-\frac{13}{2},5\right)$ Coordinates of $D$: $(-9,7)$

Finding the Coordinates of the last Vertex of a Parallelogram

Finding the Coordinates of the last Vertex of a Parallelogram

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