f(-9) = -9/3 +4
= -3 + 4
= 1
Answer is D. 1
f(x)=x/3+4 where f(-9)
First you substitute
f(-9)=-9/3+4
Then you solve by doing -9/3
f(-9)=-3+4
Then finish solving
f(-9)=1
So the final answer is D. 1
