SOLUTION: f(x)= x^2-4x+4/x-1 a) Identify the x & y-intercepts b) Find all vertical, horizontal and slant asymptotes c) Check for symmetry d) Plot sufficient solution points e) Sketc

Algebra ->  Rational-functions -> SOLUTION: f(x)= x^2-4x+4/x-1 a) Identify the x & y-intercepts b) Find all vertical, horizontal and slant asymptotes c) Check for symmetry d) Plot sufficient solution points e) Sketc      Log On


   



Question 585599: f(x)= x^2-4x+4/x-1
a) Identify the x & y-intercepts
b) Find all vertical, horizontal and slant asymptotes
c) Check for symmetry
d) Plot sufficient solution points
e) Sketch the graph of f(x)

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)= (x^2-4x+4)/(x-1)
a) Identify the x & y-intercepts
x-intercept ?
Let y = 0; then x^2-4x+4 = (x-2)^2 = 0
x = 2 is the x-intercept.
----
y-intercept ?
Let x = 0, then y = 4/(-1) = -4
-------------------------------
b) Find all vertical, horizontal and slant asymptotes
Vertical with x = 1
Horizontal with y = x^2/0x^2 is undefined.
So no horizontal asymptote.
Slant: (x^2-4x+4)/(x-1) = (x-3)(x-1)+1
Slant asymptote: y = x-3
-----------------------------------
c) Check for symmetry
f(-x) = (x^2+4x+4)/(-x-1)
-f(-x) = (x^2+4x+4)/(x+1)
Since f(x) is not equal to f(-x), no y-axis symmetry.
Since f(x) is not equal to -f(-x), no origin symmetry.
-------------------------------------
d) Plot sufficient solution points
e) Sketch the graph of f(x)
graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C%28x%5E2-4x%2B4%29%2F%28x-1%29%29
------------------
Cheers,
Stan H.