Porisma

A hint to get started

Undo a three-step transformation of an implicit curve

A reflects in the y-axis; B translates 4 units in the positive x-direction; C scales parallel to y by 2. A curve undergoes A,B,C in that order, giving y2=−4xy^2=-4x. Determine its equation before the transformations. marks

[2010/DHS/Promo/6(a)]

CJC · Review problems · Question 6

Undo transformations in reverse order: C,B,A.

Read the worked solution