What is the answer to this?
2 answers:
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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.
Answer:
= 2n + 3
Step-by-step explanation:
This is an arithmetic sequence with nth term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 5 and d = 2 , then
= 5 + 2(n - 1) = 5 + 2n - 2 = 2n + 3