April 20, 2014

Homework Help: algebra

Posted by Harry on Friday, April 27, 2007 at 7:47pm.

Find the points of discontinuity and any holes.


please and thank you

y =(x^2-1)/((x+1)(x+2))

we cancelled the (x+1)/(x+1) which is 0/0 for x=-1
so in our simplified expression when x=-1 y = -2
There is a "hole" at (-1,-2)

in the final expression the denominator cannot be zero, it is zero when x=-2

so the function is discontinuous at x=-2

so what are the points of discontinuity?

i thought that -1 and -2 were the pts of discontinuity

doesn't y=x^2-1/(x^2+3x+2)

since you factor it?

Answer this Question

First Name:
School Subject:

Related Questions

math - Can someone please help me with these few problems here? Find the holes ...
calculus please help! - Which of the following functions f has a removable ...
Calculus - Find the points of discontinuity. f(x) = { 16/x^2 if x ≥ 2 { 3x...
calculus - find the points of discontinuity of the given function f(x) =x+3/|x2...
Calculus (Discontinuities) - Suppose, f(x) = { (x - 1)^2 / x + 1 if x < 2 (x^...
infinite discontinuity - How do check the graph of a function has an infinite ...
clalc - Suppose h(x) = f (g(x)) and the graphs of f and g are shown below. ...
calculus - Hi, I am lost on couple of problems and i was wondering if you could ...
check my work on derivatives - Can someone check my work? So, I took the ...
algebra please help! - I need help understanding how to do these problems. ...