Math 10 – week 9

in this week of math we learned about functions. functions are like relations, but they’re SPECIAL! it’s like an input output chart with X and Y. except a function is where the input number or X will never have the same output or Y.

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for example, in this photo there are two input numbers where it has 4. But, they each have a different output. this would mean it is not a function. this would be just a regular relation

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in this photo there is two same numbers in the input, but they both have the same output. and none of the other numbers have the same input number. so this would be a function.

 

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