Answer:
f(-7)=0.
f(2)=-9/5.
f(3) doesn't exist because 3 isn't in the domain of the function.
Step-by-step explanation:
is the given function.
We are asked to find:
.
f(-7) means to replace x in the expression called f with -7:
Evaluate at
So f(-7)=0.
f(2) means to replace x in the expression called f with 2:
Evaluate at
So f(2)=-9/5
f(3) means to replace x in the expression called f with 3:
Evaluate at
Division by 0 is not allowed so 3 is not in the domain of our function.