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When studying a new antiviral drug, researchers found that the drug concentration in a patient's bloodstream halves every 2 hours. Which of the following best describes how the drug concentration changes as time elapses? Choose 1 answer: A Linear increase (B) Linear decrease (C) Exponential increase (D) Exponential decrease

When studying a new antiviral drug, researchers found that the drug concentration in a patient's bloodstream halves every 22 hours. Which of the following best describes how the drug concentration changes as time elapses?\newlineChoose 11 answer:\newline(A) Linear increase\newline(B) Linear decrease\newline(C) Exponential increase\newline(D) Exponential decrease

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Q. When studying a new antiviral drug, researchers found that the drug concentration in a patient's bloodstream halves every 22 hours. Which of the following best describes how the drug concentration changes as time elapses?\newlineChoose 11 answer:\newline(A) Linear increase\newline(B) Linear decrease\newline(C) Exponential increase\newline(D) Exponential decrease
  1. Identify change type: Identify the type of change in drug concentration over time.\newlineSince the drug concentration halves every 22 hours, this indicates a consistent rate of decrease by a factor, not a constant amount. This is characteristic of an exponential function, not a linear one.
  2. Determine exponential change: Determine whether the exponential change represents an increase or a decrease.\newlineBecause the concentration is halving, it is decreasing over time. Therefore, the change is an exponential decrease.

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