Functions (general)

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Using f(x), g(x), or h(x) instead of y is called using ......

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Function Notation

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-3

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22

Front

The graph shows a person's weight, W(x), as they lose weight each week, x. How would we write the function notation here?

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W(weeks)=weight

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Solve for x: f(x) = -12, f(x) = 4x + 4. What is x?

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x = -4

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What is a function?

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A function is a relation that assigns exactly one output for each input.

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What is the domain of a function?

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The domain is the set of all possible input values (x-values) for the function.

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What is the range of a function?

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The range is the set of all possible output values (y-values) for the function.

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What does it mean for a function to be linear?

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Front

What is the slope of a line?

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The slope is a measure of the steepness of a line, calculated as the change in y over the change in x (rise/run).