Question

find the location of q, the midpoint of pr.
location of q:

Explanation:

Step1: Identify coordinates

The coordinate of point $P$ is $9$ and the coordinate of point $R$ is $1$.

Step2: Apply mid - point formula

The mid - point formula for two points $x_1$ and $x_2$ on a number line is $Q=\frac{x_1 + x_2}{2}$. Here $x_1 = 9$ and $x_2=1$, so $Q=\frac{9 + 1}{2}$.

Step3: Calculate the value

$\frac{9+1}{2}=\frac{10}{2}=5$.

Answer:

$5$