Problem 102 of 7
For f(x)=a(0.1)^x, find the value 2 interval(s) before the known value 0.5 at time 2.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
reason backward using division by growth factor.
Hidden until you reveal it.
Known value and factor must determine the requested earlier value exactly or by standard rounding.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the exponential factor.
2. Moving backward one interval means divide by the factor.
3. Repeat for the requested number of steps.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Subtracting a fixed amount unless the model is linear.