midpoint calculation methods
Check the final answer first, then review the worked steps.
Problem
midpoint calculation methods
Step-by-step solution
The midpoint formula for the y-coordinate is $\frac{y_1 + y_2}{2}$. For points $(0,0)$ and $(0,15)$, this is $\frac{0+15}{2} = 7.5$. Counting by hand is also a valid method for small integers.
Answer
A, D