Function Transformation Question?
One of the factors that doctors use to determine the age of a fetus is the crown-to-rump length (CRL) measured during an ultrasound. A recently study determined that the average CRL, in millimeters, of a fetus with gestational age x days could be represented by the function f(x)=0.01634(x-26.643)^2. This formula applies between 6 to 15 weeks of gestation.
a.) What are the restrictions on the domain of this function?
The answer is 42<x<105, but I don't understand how they got that answer.
- llafferLv 74 weeks ago
Nothing in the equation itself would limit it to 42 through 105 days.
The only thing that does is the fact that it's used from 6-15 weeks.
Convert those weeks to days and you get 42-105 days.