Solving Linear Equation by Guessing

Algebra Level 2

Given that \(f(x) = mx+b\) such that \(f(2)=0\), \(f(x_1)=f_1\), and \(f(x_2)=f_2\). Find the value of \[ \frac{f_1x_2 – f_2x_1}{f_1-f_2}.\]

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