To solve this problem you must apply the proccedure shown below:
1. You have the following points given in the problem above:
[tex] A(9,8)\\ B(-1,-2) [/tex]
2. To find the midpoint, you must apply the formula that is used for calculate it. This is:
[tex] m=(\frac{x1+x2}{2}, \frac{y1+y2}{2} ) [/tex]
Where:
[tex] x1=9\\ x2=-1\\ y1=8\\ y2=-2 [/tex]
3. Now, you must substitute these values into the formula for calculate the midpoint, as following:
[tex] m=(\frac{9+(-1)}{2} ,\frac{8+(-2)}{2} )\\ m=(4,3) [/tex]
Therefore, the answer is: [tex] m=(4,3) [/tex]
