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Hello! this is function or no?

Hello! this is function or no?-example-1
User Sarcastyx
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Yes, they are both functions.

User Kreeszh
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they are both functions.. when i was taking algebra my teacher taught me the straight edge trick.. you take a ruler and run it across the graph, if the ruler touches more than one point on the graph at one time, it is not a function.. but since the ruler did not touch more than one point at one time on both of these, they are both functions.

User Aditi Gupta
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