Oh student ah? Ok lah sell you cheap AIRASIA 100 shares @ $1.55 (student price) end of the year can break even

It's the point where the price temporary/permanently change direction.
In AIRASIA case around 80sen

OR

at the level where the price is likely to bounce off/remains
e.g RESORT 2.50, this support level have since been broken.

Fortune tellers might want to offer some magic numbers here.

TA will dig further back in time to find where was the last lower low.

Investment trainers will teach you things like Fibonacci retracement levels or
to some extents Candlesticks Bullish Reversal patterns.