When the moist humid air moves into an area the barometer will be?

When the moist humid air moves into an area the barometer will show a decrease in its reading. Barometers are responsible for detecting the air pressure within the area. A humid air is a type of air that has low pressure and is usually found in low lying areas, therefore the reading in the barometer will fall down instead of go up. 

2. x2 + 8x + 12 = 0 to prove: x = -6 or x = -2