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d.
4x − 3 = 21
4x − 3 = 21
1 answer:
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Answer:
the marked answer (A) is correct
Step-by-step explanation:
The domain restrictions by themselves tell you the denominator of the rational function is ...
(x -3)(x +3) = x² -9 . . . . . matches only choice A
These domain restrictions will give vertical asymptotes at x=±3 if there is no cancelling zero in the numerator.
The horizontal asymptote at y=2 tells you the ratio of leading terms of the numerator and denominator polynomials must be 2. This requirement is also matched by choice A.
