Question

a) Determine the points of discontinuity of the function f and the nature of discontinuity at each of those points:

 

equationf(x)=\begin{cases}-x^2,&\text{when}x\le&space;0\\[4pt]4-5x,&\text{when}0%3Cx\le&space;1\\[4pt]3x-4x^2,&\text{when}1%3Cx\le&space;2\\[4pt]-12x+2x,&\text{when}x%3E2\end{cases}">

 

Also check whether the function f is derivable at x = 1. 

24 Mar 2026
Answer :
Word Count : 382
We are asked to analyze the discontinuities and differentiability of the piecewise function: [ f(x) = \begin{cases} -x^2, & x \le 0 \ 4-5x, & 0 < x \le 1 \ 3x-4x^2, & 1 < x \le 2 \ -12x + 2x, & x > 2 \end{cases} ] --- Step 1: Check points of discontinuity Discontinuities can occur at the boundaries of the ________ ___ _______ _______ ______ ______ ____ ___ _______ _________ ______ __________.
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