Problem 148 of 7
Identify the invalid exponential model for starts at 250 and increases by 18% each quarter from the choices 250(1.18)^x, 250(0.82)^x, 250 + 0.18x.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
catch additive percent errors and wrong factors.
Hidden until you reveal it.
Choices must include at least one percent-to-factor error.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Convert the percent change to the correct base.
2. Compare each choice to the correct base and initial value.
3. Identify the invalid model and name the conversion error.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Marking a linear distractor if the prompt asks for a specific exponential model error and another exponential error is present.