Question
Find the derivative of $2x - \frac{3}{4}$

Answer

Here $f(x) = 2x - \frac{3}{4}$
$\therefore \;f{\text{'}}(x) = \frac{d}{{dx}}\left( {2x - \frac{3}{4}} \right)$
$= 2\frac{d}{{dx}}(x) - \frac{d}{{dx}}\left( {\frac{3}{4}} \right)$
= 2 × 1 - 0 = 2

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