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Determine whether the relation represents a function. If it is a function, state the domain and range.
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Q15: <span class="ql-formula" data-value="\mathrm { P } _
Q48: Given the function <span class="ql-formula"
Q53: <span class="ql-formula" data-value="f ( x ) =
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Q113: <span class="ql-formula" data-value="f ( x ) =
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Q146: <span class="ql-formula" data-value="f(x)=\left\{\begin{array}{ll}-x+2 & x<0 \\\sqrt{x}+3 &
Q202: <span class="ql-formula" data-value="f(x)=(x-5)^{2}"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo