# Chapter P - P.1 - Graphs and Models - Exercises: 15

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 = $\sqrt(5-(-4))$

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