Question-99392

Question Number 99392 by AwaisAhmed last updated on 20/Jun/20

Commented by PRITHWISH SEN 2 last updated on 21/Jun/20

To be continuous

4 b = - 2 \Rightarrow b = - \frac{1}{2}

Answered by Rio Michael last updated on 20/Jun/20

if f (x) is continuous, then it is continuous at x = - 2

\Rightarrow \lim_{x \to - 2^{-}} f (x) = \lim_{x \to - 2^{+}} f (x) = f (2)

\lim_{x \to - 2^{-}} x = - 2 and also \lim_{x \to - 2^{+}} {b x}^{2} = 4 b also f (- 2) = 4 b

\Rightarrow - 2 = 4 b \Leftrightarrow b = - \frac{1}{2}

Commented by PRITHWISH SEN 2 last updated on 21/Jun/20

sorry itis a typo