Chapter 14.3, Problem 1NAEP

National Assessment of Educational Progress(NAEP)

The endpoints of a line segment are the points with coordinates $\left(2,1\right)$ and $\left(8,9\right)$. What are the coordinates of the midpoint of this line segment?

a. $\left(2,3\frac{1}{2}\right)$

b. $\left(3,4\right)$

c. $\left(5,5\right)$

d. $\left(4\frac{1}{2},5\frac{1}{2}\right)$

e. $\left(10,10\right)$