Question

2) Dada a função f( x)= 3x – 4, Calcule:
a) f( 3 )
b) f(–2 )

Answer 1

$\frac{d}{dx}\left(3x-4\right)\\\\=\frac{d}{dx}\left(3x\right)-\frac{d}{dx}\left(4\right)\\\\=3-0\\\\=3$

a) f( 3 )