SOLUTION: Find the x-coordinate of any holes for the following function. g(x)= x^2-4 ------- x^2+x-20 A. 2 B. -2 C. 5 D. 1 E. None of the above

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find the x-coordinate of any holes for the following function. g(x)= x^2-4 ------- x^2+x-20 A. 2 B. -2 C. 5 D. 1 E. None of the above      Log On


   



Question 1028849: Find the x-coordinate of any holes for the following function.
g(x)= x^2-4
-------
x^2+x-20

A. 2
B. -2
C. 5
D. 1
E. None of the above

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
x^2-4 factors to (x-2)(x+2)
x^2+x-20 factors to (x-4)(x+5)

Notice how there are no common factors shared between the numerator and denominator. So we cannot cancel any factors out.

No factors are canceled out which means there are no holes. Instead there are 2 vertical asymptotes (x = 4 and x = -5)

------------------------------------------------------------------------

Final answer: E. None of the above. There are no holes and instead 2 asymptotes.