David M. answered 09/01/20
Dave "The Math Whiz"
Going from the point (-1,4) to the midpoint (-3,5) you need to go -2 units in the x-direction and +1 units in the y-direction. You must move the same going from the midpoint to the other endpoint. Therefore, the x-coordinate will be (-3) - 2 = -5 and the y-coordinate will be 5 + 1 = 6. So, the other endpoint will be (-5,6).
Hope this helps!