Algebra Examples
f(x)=x+1f(x)=x+1 , g(x)=x2 , f(g(x))
Step 1
Set up the composite result function.
f(g(x))
Step 2
Evaluate f(x2) by substituting in the value of g into f.
f(x2)=(x2)+1
Step 3
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
Interval Notation:
(-∞,∞)
Set-Builder Notation:
{x|x∈ℝ}
Step 4