Question

HELP!!
If the point P is on the graph of a function f, find the corresponding point on the graph of the given function.
P(5, 8); y = 1/4f (1/3x) − 1

Answer 1

we can do this i think

Answer 2

if i am reading it correctly, it is \(y=\frac{1}{4}f(\frac{1}{3}x)-1\) is that right?

Answer 3

?? i don't want to begin if that is the wrong thing

Answer 4

yes

Answer 5

ok good'
so we only know the value of \(f(5)\)
therefore we need to figure out what we would put in for \(x\) in \(f(\frac{1}{3}x)\) to get 5
set
\[\frac{1}{3}x=5\] get \(x=15\)

Answer 6

now if \(x=15\) then \(f(\frac{1}{3}x)=f(\frac{1}{3}\times 15)=f(5)=8\) and so
\[\frac{1}{4}\times 8-2=2-1=1\]
therefore the "corresponding point" is \((15,1)\)

Answer 7

thanks i get how to do it now :)