Thread: Which options gives f(7-x)

I simply worked f(7-x) out and got the answer exactly described in (d). And x ≠ 19/3 and 0 ≤ x ≤ 7 seem appropriate too.

Now I wonder if there is any tricky thing in other areas. Would any fellow please take a look when you have time.

Originally Posted by pozat

I simply worked f(7-x) out and got the answer exactly described in (d). And x ≠ 19/3 and 0 ≤ x ≤ 7 seem appropriate too.

Now I wonder if there is any tricky thing in other areas. Would any fellow please take a look when you have time.

(d) is the answer

Since , . That's "d".

Thank you for all who give me reply and make MHF such a helpful site.