There can not be equal sharings since 16/5 does not equal a whole number! Good luck :)
If the -4 is NOT under the radical sign the graph would move DOWN four units on the y axis.
If the -4 is under the radical sign the graph would move 4 units to the RIGHT on the x-axis.
(4/3^2 aka 4 over 3 (fraction) to the power of 2 equals...? Please help me lol