Use the vertical line test to determine whether the graph is the graph of a function.
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Definitions:
Q13: <span class="ql-formula" data-value="\left\{ \begin{array} { l }
Q21: <span class="ql-formula" data-value="\left\{ \begin{array} { l }
Q30: Determine whether the number is a
Q31: A vendor has learned that, by
Q59: Find f(0) when f(x)=7x<sup>2</sup>-12x
Q62: <span class="ql-formula" data-value="\left\{ \begin{array} { r r
Q92: <span class="ql-formula" data-value="x^{2}+y^{2}=36"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><msup><mi>x</mi><mn>2</mn></msup><mo>+</mo><msup><mi>y</mi><mn>2</mn></msup><mo>=</mo><mn>36</mn></mrow><annotation encoding="application/x-tex">x^{2}+y^{2}=36</annotation></semantics></math></span><span
Q101: <span class="ql-formula" data-value="\left\{ \begin{array} { r }
Q170: <span class="ql-formula" data-value="5 x \geq 15"><span class="katex"><span
Q203: In 1995 , the average annual