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Is this exponential growth or decay? y= x(1/3)^x+1

What are the transformations

1 Answer

3 votes

Answer:

a) Exponential decay

b,) The parent function is shifted up 1 unit.

Explanation:

Assuming your function is


y = ( (1)/(3) )^(x) + 1

Then we can compare this to:


y = {b}^(x) + c

If


0 \: < \: b \: < 1

then y is an exponential decay function.

If |b|>1, then y is an exponential growth.

We can see that:


0 \: < \: (1)/(3) \: < \: 1

Therefore the given function is an exponential decay.

The parent function is shifted up 1 unit.

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