# How do you find the inflection points for the function f(x)=8x+3-2 sin(x)?

Solve the equation $\sin \left(x\right) = 0$ and it must be $\cos \left(x\right) \ne 0$
$f \left(x\right) = 8 x + 3 - 2 \sin \left(x\right)$
$f ' \left(x\right) = 8 - 2 \cos \left(x\right)$
$f ' ' \left(x\right) = 2 \sin \left(x\right)$
$f ' ' ' \left(x\right) = 2 \cos \left(x\right)$