Thursday, April 2, 2009
MATH REVISION NOTES ;D
Where y=f(x),
1. f(x)+a: translate graph upwards by a units! the converse applies.
2. f(x+a): translate graph LEFT by a units! the converse applies.
3. af(x): change amplitude! (like sin x and 2sin x!)
4. f(ax): change period! (like sin x and sin2x!)
5. -f(x): reflect in x-axis! (that means take the x-axis as a mirror luh! so cool right!)
6. f(-x): reflect in y-axis! (that means take the y-axis as a mirror luh! equally cool right!)
7. |f(x)|: just keep the upper half and then reflect!
8. f(|x|): just keep the right half and then reflect!
more tips to come if i don't fall asleep soon!
o9s7d uh-ed @ 11:27 PM
