Posted by Armando on Sunday, June 5, 2011 at 10:48pm.
Find the domain of the composite function . Please show all of your work.
f(x) = sqrt(x); g(x) = 2x + 12

Math  Domain of Composite  Reiny, Sunday, June 5, 2011 at 10:53pm
You do not state what composite function you want.
Do you want f(g(x)) or g(f(x)) or f(x)*g(x) .....
Does the following reply answer your question?
http://www.jiskha.com/display.cgi?id=1307080009

Math  Domain of Composite  Armando, Sunday, June 5, 2011 at 11:22pm
sorry, f o g

Math  Domain of Composite  Reiny, Sunday, June 5, 2011 at 11:29pm
f o g
= f(g(x))
= f(2x+12)
= √(2x+12)
Remember we cannot take the √ of a negative, so the domain is
2x + 12 ≥ 0
2x ≥ 12
x ≥ 6
Answer This Question
Related Questions
 Math  Domain of Composite function  Find the domain of the composite function ...
 Domain of composite function  Can you please help me with the following ...
 math  Find the domain of the composite function f of g. f(x)=3/x6; g(x)= 1/x ...
 math  find the domain of composite function fog f(x)=x/x4; g(x)= 1/x please ...
 college algebraneed help please!!  find the domain of the composite function ...
 alg  find the domain of the composite function f of g. f(x)=x^2+9;g(x)=sqrtx7...
 Domain of composite function  Find the domain of the composite function fog. f(...
 college algebraI really need help!!  Find the domain of the composite ...
 math  find the domain of the composite function fog. f(x)=x/x2;g(x)=8/x a. ...
 college algebra  For the given functions f and g find the following and state ...
More Related Questions