1. We are asked to evaluate the function $f(x) = \frac{x + 1}{2x^2 - x - 3}$ at $x = -1$.
2. The formula for the function is given as:
$$f(x) = \frac{x + 1}{2x^2 - x - 3}$$
3. To find $f(-1)$, substitute $x = -1$ into the function:
$$f(-1) = \frac{-1 + 1}{2(-1)^2 - (-1) - 3}$$
4. Simplify the numerator:
$$-1 + 1 = 0$$
5. Simplify the denominator step-by-step:
$$2(-1)^2 - (-1) - 3 = 2(1) + 1 - 3 = 2 + 1 - 3 = 0$$
6. So the function value is:
$$f(-1) = \frac{0}{0}$$
7. Since the expression results in an indeterminate form $\frac{0}{0}$, we need to simplify the function before substituting.
8. Factor the denominator:
$$2x^2 - x - 3 = (2x + 3)(x - 1)$$
9. The numerator is $x + 1$, which does not factor with the denominator factors, so no common factors to cancel.
10. Since direct substitution leads to $\frac{0}{0}$, the function is undefined at $x = -1$.
**Final answer:** $f(-1)$ is undefined because the denominator is zero at $x = -1$ and the function has a discontinuity there.
Function Evaluation 94E778
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