Problem 207 of 7
Interpret completed-square model R(c)=0.005(c-150)^2+120 in context: Reaction time in milliseconds for caffeine intake c in mg.
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connect vertex, maximum/minimum, and shifted square to situation.
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Model must be in completed-square form and context must give meaning to input and output.
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Your answer is equivalent to the expected form.
Walkthrough
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1. Read the vertex from completed-square form.
2. Use opening direction to decide maximum or minimum.
3. Translate the input and output coordinates into the context.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Answers that only state the vertex without units or contextual meaning.