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Question

The table shows a familiar pattern from geometry. Determine what the variables x and y represent. Then write a function rule that relates y to x.


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Solution

From the above table ordered pairs are (1,π)(2,2π)(3,3π)(4,4π)(5,5π).

Here, x is is diameter of circle and y is the circumference.

We know, circumference of circle y=πd where, diameter d=x given.

Thus, function rule: y=πx

Hence, a function rule that relates y to x is y=πx.


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