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a) The equation is \"\".

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x

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       \"\" \

y

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\"\"1

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\"\" \

4

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0

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\"\" \

1

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1

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\"\" \

0.25

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       2\"\" 0.0625
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\"\"

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To find the y-intercept.

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\"\"                             (Substitute x = 0)

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Graph the ordered pairs and connect the points with a smooth curve.

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The y-intercept is 1.

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\"graph \"\"

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b) Use the graph to determine the approximate value of \"\".

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The graph represents all real values of x and their corresponding values of y for \"\".

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So, the value of y is about 0.1 when x = 1.7. Use a calculator to confirm this value.\"\".\"\"

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The solution of \"\".