you have two points (0,4),(-5,1)
the distance is equal to square root of the x’s square
(0^2+-5^2)^1/2
the answer should be 5
and the midpoint is add the x’s and divid by two and do the same with y’s
so (0-5)/2 and (4+1)/2
The mis point is (-5/2,5/2)