Answer:
(-1,1)
Step-by-step explanation:
The midpoint of a line can be found using the following formula: 

Basically, to find the midpoint, add the x-coordinates and divide by 2, then add the y coordinates and divide by 2. 
X-coordinate 
Add the x-coordinates of A and B, then divide by 2. 
The x-coordinates are the numbers that comes first in the points. 
A: (-5,3) 
B: (3, -1) 
The x coordinates are -5 and 3. 
Add the x-coordinates. 
-5+3=-2 
Divide by 2 
-2/2=-1 
The x-coordinate of the midpoint is -1.
Y-coordinate 
Add the y-coordinates of A and B, then divide by 2. 
The y-coordinates are the second numbers in the points. 
A: (-5,3) 
B: (3,-1) 
The y-coordinates are 3 and -1. 
Add the y-coordinates. 
3+-1=2 
Divide by 2. 
2/2=1 
The y-coordinate of the midpoint is 1.
If the x-coordinate is -1 and the y-coordinate is 1, the midpoint is <u>(-1,1)</u>