If $f$ is the Fourier series of $g(x)=5 x + 7$ for $-8 < x < 8$, then
$f(x)=$ $+\displaystyle\sum_{n=1}^{\infty} \Bigg[ \Big($ $\displaystyle\Big)\cos\Big(\frac{n \pi}{8}x\Big) + \Big($$\displaystyle\Big)\sin\Big(\frac{n \pi}{8}x\Big) \Bigg]$

What does $f(-8)$ equal?$\ \ \ \ f(-8)=$

What does $f(-4)$ equal?$\ \ \ \ f(-4)=$

What does $f(0)$ equal?$\ \ \ \ f(0)=$

What does $f(2)$ equal?$\ \ \ \ f(2)=$

What does $f(8)$ equal?$\ \ \ \ f(8)=$