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Lelechka [254]
3 years ago
14

Find the rule for the function x, -1, 0, 1, 2 y, 3, 1, 1/3, 1/9

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
5 0

The function is y = \frac{1}{3}^{x}

This can be found by using the base equation for exponential y = ab^{x}. Now we can use the second ordered pair (0, 1) to find the value of a.

y = ab^{x}

1 = ab^{0}

1 = a(1)

1 = a

Now that we have a, we can solve for b using any other ordered pair.

y = ab^{x}

\frac{1}{3} = (1)b^{1}

\frac{1}{3} = (1)(b)

\frac{1}{3} = b

Now we can use these in the same equation.

y = \frac{1}{3}^{x}

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