Find and Simplify the Difference Quotient of F $$\frac { f ( x + h ) - f ( x ) } { h }$$

Find and simplify the difference quotient of f, $$\frac { f ( x + h ) - f ( x ) } { h }$$ $\mathbf { h } \neq 0$ , for the function.
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A)
$\begin{array}{l}\text { function } \\\text { domain: all real numbers } \\\text { range: all real numbers } \\\text { intercept: }(0,-3) \\\text { symmetry: none }\end{array}$

B)
$\begin{array}{l}\text { function } \\\text { domain: }\{x \mid x=2 \text { or } x=-3\} \\\text { range: all real numbers } \\\text { intercept: }(-3,0) \\\text { symmetry: } x \text {-axis }\end{array}$

C)
function
domain: all real numbers
range: $\{y \mid y=2$ or $y=-3\}$
intercept: $(0,-3)$
symmetry: none

D)
not a function