Question $1(1$ point$)$

For this problem, let $a=7,b=-5,c=-7,$ and $d=-1.$ Find

$\underset{x{3}^{-}}{lim}f(x)$

for the function

$f(x)=\{\begin{array}{ccc}ax& b,& x3\\ cx& d,& x>3\end{array}$

Your Answer: