For f(x) = 2x + 3 at x = 1, the limit and f(1) are both:

Question

Accepted Answer

C. 5

1. Substituting x = 1 gives 2 times 1 plus 3.
2. The limit as x tends to 1 gives the same.
3. Both come out as 5, so f is continuous there.
4. The answer is 5.
_Source: syllabus Mathematics, Ch 5 'Continuity and Differentiability'_

Answer

2

Answer

7

Answer

3

For f(x) = 2x + 3 at x = 1, the limit and f(1) are both:

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