A function is defined by (f(x) = frac{3x + 1}{x^{2} – 1}, x neq pm 1). Find f(-3).
-
A.
(-1frac{1}{4}) -
B.
(-1) -
C.
(frac{4}{5}) -
D.
(1)
Correct Answer: Option B
Explanation
(f(x) = frac{3x + 1}{x^{2} – 1})
(f(-3) = frac{3(-3) + 1}{(-3)^{2} – 1} = frac{-8}{8} = -1)