Sketch, on the same axes, the graphs of $y=\left| {{x}^{2}}-5 \right|$ and $y=2x-1$. [2] Find the ex

Question

Sketch, on the same axes, the graphs of $y=\left| {{x}^{2}}-5 \right|$ and $y=2x-1$. [2] Find the exact solutions of $\left| {{x}^{2}}-5 \right|=2x-1$. [4]

Accepted Answer

(a) Graph with key points; (b) x = 1 + √5 and x = -1 + √7

N2021 P1 Q2

N2021 P1 Q2

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