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At which values of [tex]\( x \)[/tex] does the function [tex]\( F(x) \)[/tex] have a vertical asymptote? Check all that apply.

[tex]\[
F(x)=\frac{3}{x(x-5)(x+1)}
\][/tex]

A. [tex]\(-5\)[/tex]
B. [tex]\(0\)[/tex]
C. [tex]\(-1\)[/tex]
D. [tex]\(3\)[/tex]
E. [tex]\(5\)[/tex]
F. [tex]\(1\)[/tex]


Sagot :

To determine the values of [tex]\( x \)[/tex] at which the function [tex]\( F(x) = \frac{3}{x(x-5)(x+1)} \)[/tex] has vertical asymptotes, we need to identify where the denominator of the function is equal to zero. Vertical asymptotes occur at values of [tex]\( x \)[/tex] that make the denominator zero, as this causes the function to approach infinity.

Let's set the denominator of [tex]\( F(x) \)[/tex] equal to zero and solve for [tex]\( x \)[/tex]:

[tex]\[ x(x-5)(x+1) = 0 \][/tex]

This equation is satisfied when any factor is zero, so we separate the equation accordingly:

1. [tex]\( x = 0 \)[/tex]
2. [tex]\( x - 5 = 0 \implies x = 5 \)[/tex]
3. [tex]\( x + 1 = 0 \implies x = -1 \)[/tex]

Therefore, the function [tex]\( F(x) \)[/tex] has vertical asymptotes at [tex]\( x = 0 \)[/tex], [tex]\( x = 5 \)[/tex], and [tex]\( x = -1 \)[/tex].

Given the options:
A. -5 (Incorrect, as substituting -5 does not make the denominator zero)
B. 0 (Correct, as shown by [tex]\( x = 0 \)[/tex])
C. -1 (Correct, as shown by [tex]\( x = -1 \)[/tex])
D. 3 (Incorrect, as substituting 3 does not make the denominator zero)
E. 5 (Correct, as shown by [tex]\( x = 5 \)[/tex])
F. 1 (Incorrect, as substituting 1 does not make the denominator zero)

Thus, the values of [tex]\( x \)[/tex] at which the function [tex]\( F(x) \)[/tex] has vertical asymptotes are:

[tex]\[ \boxed{0, \, -1, \, 5} \][/tex]