Answer
The temperature at noon is $-3˚F$
Work Step by Step
$= (-17) + 14$
$= 14 - 17$
$= -3˚F$
The initial temperature at 5 AM is $-17˚F$; this temperature increased by $14˚F$, which is a positive number. Therefore, you add $(+14˚F)$ to $(-17˚F)$ to determine the temperature at noon.