Graph Transformations (Edexcel GCSE Maths): Flashcards

Five

$y = k \times f(x)$

Vertical stretch (graph becomes taller)

Vertical squash (graph becomes shorter)

$y = f(x) + a$

Graph shifts upward

$y = f(x - a)$

Right (opposite to what you'd expect)

$y = f(kx)$

Horizontal squash (narrower)

Horizontal stretch (wider)

$y = -f(x)$

$y = f(-x)$