Search
Ask a question
0

determine the domain of f when f(x)= 4x[sqr(3-x)]

 determine the domain of f when f(x)= 4x[sqr(3-x)]

1 Answer by Expert Tutors

Tutors, sign in to answer this question.
Vivian L. | Microsoft Word/Excel/Outlook, essay composition, math; I LOVE TO TEACHMicrosoft Word/Excel/Outlook, essay comp...
3.0 3.0 (1 lesson ratings) (1)
0
Hi Hannah;
f(x)= 4x[sqr(3-x)]
 
The domain is all the coordinates of the x-axis.
As you already know, you cannot establish the square root of anything less than 0.
Henceforth...
(3-x) is greater than 0
-x is greater than (0-3)
-x is greater than -3
x ≤ 3
 
The domain is...
x is from negative infinity to positive 3.
domain=-∞ to 3