At which values of X does the function F(x) have a vertical asymptote? Check all that apply.
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ANSWER
A. 1
D. 8
EXPLANATION
The vertical asymptote occurs at where the denominator of a rational function in its simplest form is equal to zero.
The rational function given is
[tex]p(x) = \frac{9}{(x - 1)(x - 8)} [/tex]
This rational function is in it's simplest form.
The vertical asymptotes occurs at
[tex](x - 1)(x - 8) = 0[/tex]
By the zero product principle, we must have either
[tex](x - 1) = 0 \: \: or \: \: (x - 8) = 0[/tex]
This implies that
[tex]x =1\: \: or \: \: x = 8[/tex]
Options A and D are correct.