Question 12

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waecmaths question: 

Ada draws a graph of $y={{x}^{2}}-x-2$and $y=2x-1$on the same axes. Which of the these equations is she solving 

Option A: 

${{x}^{2}}-x-3=0$

Option B: 

${{x}^{2}}-3x-1=0$

Option C: 

${{x}^{2}}-3x-3=0$

Option D: 

${{x}^{2}}+3x-1=0$

waecmaths solution: 

$\begin{align}  & \text{Equate the equations} \\ & {{x}^{2}}-x-2=2x-1 \\ & {{x}^{2}}-3x-1=0 \\\end{align}$

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