- #1
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I'm interested in getting a better answer to showing/proving a graph is a function than the usual "horizontal line test" response. Is the use of logic the best tool for proving a function? Because that line test method is basically that.
Also, translating the function by illustrating it on the x-y plane isn't always so simple without a calculator, so other methods may be necessary.
Also, translating the function by illustrating it on the x-y plane isn't always so simple without a calculator, so other methods may be necessary.