The value of \( b \) for which the function \( f(x)=\left\{\begin{a...

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The value of \( b \) for which the function \( f(x)=\left\{\begin{array}{ll}5 x-4, & 0x \leq 1 \\ 4 x^{2}+3 b x, & 1x2\end{array}\right. \) is continuous at every point of its domain, is
(a) \( -1 \)
(b) 0
(c) \( 13 / 3 \)
(d) 1
\( \mathrm{P} \)
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