The vertices of `Delta` PQR are `P (2, 1)`, `Q (2, 3)`and `R (4, 5)`. Find equation of the median through the vertex R.

Explanation

To find the equation of the median through the vertex R of triangle PQR with vertices P(2, 1), Q(2, 3), and R(4, 5), we can follow these steps:

### Step 1: Find the Midpoint of Side PQ
The first step is to find the midpoint of the line segment connecting points P and Q. The formula for the midpoint \( M \) of a line segment with endpoints \( (x_1, y_1) \) and \( (x_2, y_2) \) is given by:

\[ M = \left( \frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2} \right) \]
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