$$ f(x)=\left\{\begin{array}{ll}3+x & ext { if } x

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$$ f(x)=\left\{\begin{array}{ll}3+x & 	ext { if } x<0 \ x^{2} & 	ext { if } x \geq 0\end{array}ight. $$ The function $$ f $$ is defined as follows. 4 (a) Find the domain of the function. (b) Locate any intercepts. (c) Graph the function. (d) Based on the graph, find the range. (a) The domain of the function $$ f $$ is (Type your answer in interval notation.)

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**(a)**  
The domain of $$ f(x) $$ is the set of all real numbers, since both pieces of the function are defined for their respective intervals. In interval notation, the domain is  
$$
(-\infty, \infty)
$$
**(a)** The domain of $$ f(x) $$ is all real numbers, written as $$ (-\infty, \infty) $$

The function is defined as follows. 4
(a) Find the domain of the function.
(b) Locate any intercepts.
© Graph the function.
(d) Based on the graph, find the range.
(a) The domain of the function is
(Type your answer in interval notation.)

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The function is defined as follows. 4 (a) Find the domain of the function. (b) Locate any intercepts. © Graph the function. (d) Based on the graph, find the range. (a) The domain of the function is (Type your answer in interval notation.)