Answer
Using a graphing calculator, we can approximate the x and y values to be
(a) y = 1.73
(b) x = -4
Work Step by Step
(a) (2, y) = (2, 1.73)
y = $\sqrt(5-2)$ = $\sqrt(3) \approx$ 1.73
(b) (x, 3) = (-4, 3)
3 = $\sqrt(5-(-4))$