Question
Let the function $f$ be defined by the equation $y=f(x)$ where $x$ and $f(x)$ are real numbers. Find the domain of each function.$$f(x)=3 \sqrt{2-x}$$
Step 1
The square root function is only defined for values greater than or equal to zero. Therefore, the expression inside the square root, $2-x$, must be greater than or equal to zero. We can write this as: \[2-x \geq 0\] Show more…
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