Graph the circle from the standard form (x-1) squared + y squared =49

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

The parabola opens: y=√x-4 (principal square root) up down right left

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0