MathCalculus

Limit Notation: Estimate a Rational Limit with Eight Table Values

Complete the eight prescribed table entries on both sides of x = 2, interpret two-sided limit notation, and verify the limiting value algebraically.

Question

Use a table to find the indicated limit. The source specifies: Round to eight digits.

lim⁡x→2x2−4x2+x−6.\lim_{x\to2}\frac{x^2-4}{x^2+x-6}.

Fill every entry in this two-sided table:

Entryx (from the left)f(x)Entryx (from the right)f(x)
a1.9e2.1
b1.99f2.01
c1.999g2.001
d1.9999h2.0001

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Evidence boundary

All eight inputs and the precision instruction come from OpenStax Calculus Volume 1 section 2.2, exercise 38. Table outputs are reproducible calculations, independently checked with high-precision arithmetic. The table suggests the limit; algebra proves its exact value. No value is assigned to the original function at x = 2.