alleryf(x) = x squared at x = 0 is:
ANot a functi
BContinuous
CDiscontinuo
DUndefined a
Answer & Solution
Correct answer: B. Continuous
1. Work out the limit of x squared as x tends to 0.
2. That limit is 0, which equals f(0).
3. So the function is continuous at x = 0.
4. The answer is continuous.
_Source: syllabus Mathematics, Ch 5 'Continuity and Differentiability'_
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