Unit 1:Rational and Piecewise-Defined Functions Exam Review SKG

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What is a rational function?

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What does it mean for a function to be piecewise-defined?

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A piecewise-defined function is a function that is defined by different expressions or formulas over different intervals of its domain.

Front

How do you solve equations by cross-multiplying?

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What is the limit of a function?

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The limit of a function as x approaches a certain value is the value that the function approaches as x gets closer to that value.

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What does DNE stand for in limits?

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DNE stands for 'Does Not Exist', indicating that the limit does not approach a finite value.

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How do you evaluate a piecewise function at a specific point?

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To evaluate a piecewise function at a specific point, determine which interval the point falls into and use the corresponding expression for that interval.

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What is the significance of the graph of a piecewise function?

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The graph of a piecewise function visually represents the different expressions that define the function over various intervals.

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What is the formula for finding the limit from the right?

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What is the formula for finding the limit from the left?

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