Problem 42 of 7
Interpret the y-intercept of quadratic model C(t)=-0.2t^2+2t+0.5 in context concentration of a drug in the bloodstream (mg/L) after t hours.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
connect input zero to initial value.
Hidden until you reveal it.
Context must make input zero meaningful or explicitly discuss whether it is meaningful.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Evaluate the model at input zero or read the constant term.
2. Identify the output value.
3. Translate input zero and output value into context.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Confusing y-intercept with zero of the function.