SOLUTION: find f(m-2) if f(x)=5/x+2

Algebra ->  Functions -> SOLUTION: find f(m-2) if f(x)=5/x+2      Log On


   

Question 656723: find f(m-2) if f(x)=5/x+2
Found 2 solutions by lynnlo, MathLover1:
Answer by lynnlo(4176) About Me  (Show Source):
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

if f%28x%29=5%2Fx%2B2 and you need to find f%28m-2%29+ means you are given
x=m-2; so, go to
f%28x%29=5%2Fx%2B2...replace x with m-2

f%28m-2%29=5%2F%28m-2%29%2B2
f%28m-2%29=5%2F%28m-2%29%2B2%28m-2%29%2F%28m-2%29
f%28m-2%29=%285%2B2%28m-2%29%29%2F%28m-2%29
f%28m-2%29=%285%2B2m-4%29%2F%28m-2%29
f%28m-2%29=%282m%2B1%29%2F%28m-2%29