394,942 views
31 votes
31 votes
This table shows rainfall in centimeters for a city in different months the quadratic regression equation that models these data is y=-0.77x^2+6.06x-5.9. Using the model the predicted rainfall for month 11 is about -32.4 centimeters does this prediction make sense why or why not HELP ASAP

This table shows rainfall in centimeters for a city in different months the quadratic-example-1
User Akash Preet
by
3.0k points

1 Answer

21 votes
21 votes

Answer:

(a) No; rainfall amounts are positive

Explanation:

Rainfall amounts are measured using a gauge that reports the amount as zero when the gauge is empty. Any rainfall adds to the amount in the gauge, so is reported as a positive number. There is no way to remove more rainfall than is in the gauge, so there is no way to have a negative rainfall amount

A prediction of a negative rainfall amount makes no sense, because you can't have a negative amount of rainfall.

User Jakob Sternberg
by
3.0k points