\"\"

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The equation is \"\".

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From the circular function definations \"\".

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\"\".

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\"\".

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The graph of this equation is a line through the origin with slope \"\".

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Evaluate the function for several values of \"\" in its domain and use this points to graph the function.

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(1) Draw the coordinate plane.

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(2) Graph the function \"\".

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Graph :

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\"\"

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\"\"

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The rectangular equation is \"\".

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Graph :

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\"\"