SOLUTION: Let (4,-5) be the point on the graph of F(x). Find the point on the graph of. a. y=f(x-1) B. y=-f(x+4) C. y=2f(x-3)-4 I don't really understand this question am I suppose to us

Algebra ->  Graphs -> SOLUTION: Let (4,-5) be the point on the graph of F(x). Find the point on the graph of. a. y=f(x-1) B. y=-f(x+4) C. y=2f(x-3)-4 I don't really understand this question am I suppose to us      Log On


   



Question 1051718: Let (4,-5) be the point on the graph of F(x). Find the point on the graph of.
a. y=f(x-1)
B. y=-f(x+4)
C. y=2f(x-3)-4
I don't really understand this question am I suppose to use a formula for each one? Or how do you even get the problem solved?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
If this is all they give you, then that means the
function, +f%28x%29+ is unknown. In that case, I
think this is all you can do:
(a)
( 4,-5 )
+y+=+f%28+x-1+%29+
+y+=+f%28+4-1+%29+
+y+=+f%28+3+%29+
The point would be:
( 3, f(3) )
----------------------
(b)
( 4,-5)
+y+=+f%28+x%2B4+%29+
+y+=+f%28+4%2B4+%29+
+y+=+f%288%29+
The point is:
( 8, f(8) )
----------------------
In other words, you can't really use the
information that +f%284%29+=+-5+, because
when +x+ changes, then what does +y+ do?
Only the actual function would tell you that.
Get a 2nd opinion on this.