Answer: What is your question?
You need to find the change in x and y
change in x = 12
change in y = 16
to find the distance you use a^2+ b^2 = c^2
or in this case x^2 + y^2 = d^2
144+256 = 400

=20
so distance equals 20
I hope this helps!
Alternate angles - happy to help!
I can't see anything so I'll say function. Next time add a screenshot!
Best of luck to you