Answer
The function is neither even nor odd.
Work Step by Step
The given function is
$\Rightarrow f(x)=4x+3$
Substitute $-x$ for $x$.
$\Rightarrow f(-x)=4(-x)+3$
Simplify.
$\Rightarrow f(-x)=-4x+3$
Because $f(-x)\neq-f(x)$ and $f(-x)\neq f(x)$, the function is neither even nor odd.
