Point $${A}$$ is at $$(-6,5)$$ and point Mstart is at $$(-1.5,-1)$$. Point $${M}$$ is the midpoint of point $${A}$$ and $${B}$$. What are the coordinates of point $$B$$ ? ![](http://admin.getprephub.com/media/editor/ag5_20230214200904225474.png)

Let, $$M(-1.5,-1)$$ is the midpoint of $$A(-6,5)$$ and $$B(x, y)$$ by midpoint formula, $$(\frac{-6+x}{2}, \frac{5+y}{2})=(-1.5,-1)$$ comparing, $$\frac{-6+x}{2}=-1.5$$ $$\text { or, }-6+x=-3$$ or, $$\quad x=6-3=3$$ also,$$\frac{5+y}{2}=-1$$ $$5+y=-2$$ $$\text { or, } y=-7$$ The co-ordinate of $$B$$ is $$(3,-7)$$

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MCQ

Point ${A}$ is at $(-6,5)$ and point Mstart is at $(-1.5,-1)$ .

Point ${M}$ is the midpoint of point ${A}$ and ${B}$ .

What are the coordinates of point $B$ ?

Select all that apply :

$(3,-7)$

$(3,7)$

$(-7,3)$

$(-7,-3)$

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