Which of the following shows a function written in equation notation that is equivalent to the function below?
f(x) = 3(x + 10)
A.
y = 3x + 10
B.
y = 3f(x) − 30
C.
y = 3(x + 10)
D.
y = 3f(x) − 10
Answer C f(x) = 3 (x+10) then y = 3 (x+10)
+81 
