5. Find the domain of each function. Show ALL your work. (a) (5 points) $f(x) = \frac{3x+1}{\sqrt{x+7}}$ (b) (5 points) $g(x) = \frac{\sqrt{3-x}}{x}$ (c) (5 points) $h(x) = 3x^2 + x + 37$
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For f(z), there are no restrictions on the domain since it is a polynomial function. Therefore, the domain is all real numbers, or (-∞, ∞). Show more…
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