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If a vertical line, within the domain of the function, intersects the graph in more than one points, it is not a function.
The answer depends on what the graph is of: the distribution function or the cumulative distribution function.
there is no graph... but most chance it's all real numbers
The "x values that work are the domain numbers like for y=x+1 would be any real number. But, y= sqrx x would have to be non-negative.
Horizonatal line test is a test use to determine if a function is one-to-one. If a horizontal line intersects a function's graph more than once, then the function is not one-to-one. A one-to-one function is a function where every element of the range correspons to exactly one element of the domain. Vertical line test is a test used to determine if a function is a function or relation. If you can put a vertical line through graph and it only hits the graph once, then it is a function. If it hits more than once, then it is a relation.
If a vertical line, within the domain of the function, intersects the graph in more than one points, it is not a function.
You do not graph range and domain: you can determine the range and domain of a graph. The domain is the set of all the x-values and the range is is the set of all the y-values that are used in the graph.
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The practical domain is the domain by simply looking at the function. Whereas the mathematical domain is the domain based on the graph.
The answer depends on what the graph is of: the distribution function or the cumulative distribution function.
A function must have a value for any given domain. For each edge (or interval), the sign graph has a sign (+ or -) . So, it is a function.
Graph each "piece" of the function separately, on the given domain.