Transformations of Various Functions Flashcards
General function
g(x)=af[k(x-d)] + c
What is ‘a’?
vertical stretch/compression
if a>1 or a<-1…
Vertical stretch by a factor of a
if -1<a<1…
Vertical compression by a factor of a
if a<0…
Vertical reflection
(reflection over the x-axis)
What is ‘K’?
Horizontal stretch/compression
If k>1 or k<-1…
Horizontal compression by a factor of 1/k
If -1<k<1…
Horizontal stretch by a factor of 1/k
if k<0…
Horizontal reflection
(reflection over the y-axis)
What is ‘d’?
Horizontal translation
if d>0…
The graph shifts right
if d<0…
The graph shifts left
What is ‘C’?
Vertical translation
if c>0…
The graph shifts up
if c<0…
The graph shifts down
What is mapping notation?
(1/kx + d, ay + c)
Quadratic parent function
y=x^2
Radical parent function
y=√x
Rational parent function
y=1/x