0 votes 0 votes If $f(x) = x^3 - 4x + p$, and $f(0)$ and $f(1)$ are of opposite signs, then which of the following is necessarily true? $-1 < p < 2$ $0 < p < 3$ $-2 < p < 1$ $-3 < p < 0$ Quantitative Aptitude cat2004 quantitative-aptitude functions + – go_editor asked Jan 12, 2016 • edited Mar 30, 2022 by Lakshman Bhaiya go_editor 13.8k points 752 views answer comment Share See all 0 reply Please log in or register to add a comment.
2 votes 2 votes f(0) = p and f(1) = p-3 Since f(0) and f(1) are of opposite signs, hence p(p-3) < 0 So correct option should be (2). Shweta Nair answered Oct 6, 2017 Shweta Nair 134 points comment Share See all 0 reply Please log in or register to add a comment.