Example Question #1 : Evaluate Functions For Inputs In Their Domains
Define and .
The expression is undefined.
so first, evaluate by substituting 2 for in :
so evaluate through a similar substitution:
the correct response.
Example Question #2 : Evaluate Functions For Inputs In Their Domains
Define functions and as follows:
By definition, . Evaluate by substituting 0 for in the definition of :
, so substitute 4 for in the definition of . Since 4 satisfies the condition , use the definition for those values:
the correct value.