Given the square root function, y = 1/2 sqrt(x+3) - 9, what is the y-value when x =...
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Problem
Given the square root function, y = 1/2 * sqrt(x+3) - 9, what is the y-value when x = 13?
Step-by-step solution
Substitute x=13 into the equation: $y = \frac{1}{2}\sqrt{13+3} - 9 = \frac{1}{2}\sqrt{16} - 9 = \frac{1}{2}(4) - 9 = 2 - 9 = -7$.
Answer
-7