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Use the vertical line test to determine whether or not the graph is a graph in which y is a function of x.
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Q1: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7043/.jpg" alt=" A)
Q61: <span class="ql-formula" data-value="f ( x ) =
Q63: <span class="ql-formula" data-value="S = 2 \pi r
Q73: <span class="ql-formula" data-value="\begin{array} { r } y
Q106: <span class="ql-formula" data-value="\ln \mathrm { e }
Q134: <span class="ql-formula" data-value="y + 4 = (
Q139: x + y = 36<br>A)y is a
Q140: <span class="ql-formula" data-value="f ( x ) =
Q187: <span class="ql-formula" data-value="x ^ { 2 }
Q268: <span class="ql-formula" data-value="3 \mathrm { x }