Answer:
The midpoint is ( 7,-6)
Explanation:
To find the x coordinates of the midpoint, add the x values of the endpoints and divide by 2
( 6+8)/2 = 14/2 =7
To find the y coordinates of the midpoint, add the y values of the endpoints and divide by 2
( -3+-9)/2 = -12/2 =-6
The midpoint is ( 7,-6)