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snow_tiger [21]
3 years ago
14

This one is very hard thank you

Mathematics
1 answer:
makvit [3.9K]3 years ago
3 0

check the picture below.


if we run a vertical line test on that graph, like you see there, namely run vertical lines through it, we can see that one vertical line only hits the graph once, not twice or more.


on the vertical line test, if the graph is hit only once by each of the vertical lines, then the graph is a function.

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