In order to test a graph if it is a function, we would perform a VerticalLineTest. We will plot a vertical line and there should be atleastonepointthat would intersect to the graph.
A vertical line as a graph would only makethelinetestparalleltothelinetest, so it will not pass through any point. Therefore, letter A is not a function.
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In order to test a graph if it is a function, we would perform a Vertical Line Test. We will plot a vertical line and there should be at least one point that would intersect to the graph.
A vertical line as a graph would only make the line test parallel to the line test, so it will not pass through any point. Therefore, letter A is not a function.
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