Question

Determine the midpoint given the following points A(4,2) B (-8, 18)
1) (2, -10)
2) (-2, 10)
3) (2, 10)
4) (-2, -10)

Answer 1

http://geometry.jdeer.com/Images/c1/midpoint%20formula.gif

Answer 2

the midpoint is average of the x values and average of the y values

\[x = \frac{4 - 8}{2}... y = \frac{2 + 18}{2}\]

I'll let you don the calculation