document.write( "Question 601152: is the relation y=40x+30 a function? why or why not \n" ); document.write( "

Algebra.Com's Answer #379614 by solver91311(24713) $\"\"$ $\"About$

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\n" ); document.write( "\n" ); document.write( "Graph your relation. If you cannot find a vertical line that touches the graph in two places, then the relation is a function.\r
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\n" ); document.write( "\n" ); document.write( "Another way to look at it: Is there a value of the independent variable,

that would cause the function to return more than one value of the dependent variable? If not, then the relation is a function. \r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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