Question

____.
$- 15 \div = 3$
​

Answer 1

Answer:

$\boxed{\boxed{\boxed{\boxed{\boxed{\tt{\red{f(x)= \left \{\begin{array}{cc} \tt-2, & \tt{x \leq-1 }\\ \tt 2 x, & \tt-1<x \leq 1\\ 2, & \tt{x>1}\end{array}\right.}}}}}}}$