The function f(x) is defined as 17 more than 3 times a number x. If y=f(x) is graphed in the xy-plane, what is the best interpretation of the y-intercept?
When f(x)=0, the number is −317.
A
When the number is 0, f(x)=17.
B
For each increase of 1 in the value of the number, f(x) increases by 3.
C
The value of f(x) increases by 1 for each increase of 3 in the value of the number.