If (4,3) is on the graph of y=f(x), which one of the following must be a point on the graph of y=-f(2x+10)?
3)-3,-3 -not typo
I don't know what to do here? Any tips would be really helpful!
1 Answer | Add Yours
Given that `(4,3)` lies on the graph of f(x), find the point that must lie on `-f(2x+10)` :
(1) If x=-8 then y=-f(-6). We don't know what f(-6) is.
(2) If x=18 then y=-f(-26). Again, we do not know the value of f(-26).
(3) If x=-3 then y=-f(4)=-3. Thus the answer is both (2) and (3).
The solution is (-3,-3)
** If this is an online class, I suspect an error on the instructor's part. Unfortunately, you will have to guess as to which one will be marked correct. If this is a face to face class, you will be able to point out the error.
Join to answer this question
Join a community of thousands of dedicated teachers and students.Join eNotes