They began to form by a combination of volcanic activity and the deposit of marine sediments. It formed along northwest Africa about 530 million years ago. ... As the Appalachian Mountains eroded, sand and clay were deposited over Florida's limestone layer.
The answer would be (-13,-4) if you wanted to do it without a graph all you have to do is subtract so -8 - (-3)= -5 so five to the left and -9 - (-5)= -4 so four down. Hope this helps! :)
