The midpoint of AD is C. The midpoint of AC is B. If A is at (-10,4) and D is at (2,12), find the coordinates of B. Group of answer choices (-5,5) (-4,8) (-2.5,9) (7,6)

Step-by-step explanation:

Given

Required

Determine the coordinates of B

C is the midpoint of AD. So, we calculate the coordinates of C, first.

Where:

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So, we have:

So, the coordinates of C is (-4,8)

The midpoint of AC is B.

So, we calculate the coordinates of B using:

Where:

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So, we have:

Hence, the coordinates of B is (-7,6)

None of the options is correct.