Transformation of Functions- Part 1 Flashcards
compression and stretch of y=af(x)
Compression: fractions
Stretch: whole number
Rules of y=af(x)
a vertrical compression/strech by a fcator of
vertical relfection across the x-axis
compression and stretch of y=f(kx)
Compression: whole numbers
Stretch: fractions
Rules of y=f(kx)
horizontal stretch/compression by a factor of (1/lkl)
You need to change the formula so it fits the y=af(x) com and stretch
horizontal reflection across y-axis
Rules of f(x-d)
a horizontal translation d units to teh right/left
Rules of f(x) +c
vertical translation c units up/dowm
Equation of transformations
af[k(x-d)] + c
a- vertical strech. compression/ relfect in x
k- horizontal stretch, compression/ relfect in y
d- horizontal translation left or right
c- vertical tranlation up or fown
mapping rule
(1/kx + d, ay +c)
greater than and less than sign
greater than >
less than <
order of transformations
reflection in x-axis
vertical stretch/compress
relefction in y-axis
horizontal stretch/compress
HT
VT
determinting function using mapping diagram
if one x-value (x=1) has 2 y values (y=2, 3) then it is not a function
If 2 x values share 1 y value, it is a function