Finding the scale factor and the center of enlargement

Learn how to find the center and the scale factor of enlargement given the object and the image points.

[KcseMathsTutorials]

Kindly check the updated video of the same question

[moseskimani]

You are always excellent Mr. Wang'ombe.More blessings

[Phatoracle]

Thank you for sharing this interesting method for finding the center of enlargement in transformations. I appreciate the effort to simplify the concept. However, I’d like to point out that the method using the equation Scale Factor X (x-a, y-b) = (x'-a, y'-b) is not always accurate or applicable in every scenario. A more reliable algebraic approach involves using linear equations or vector algebra. A robust method would be as such: Given center C ( Cx, Cy), K = scale factor, two corresponding points of A ( Ax, Ay) and A'(A'x, A'y) , then, K = (A'x-Cx)/(Ax-Cx) and K = (A'y-Cy) / (Ay-Cy).

[minachaudhary]

Thank u sir
It'll be helpful 4 me in my exam today

[abdulrahmanibrahim]

Using the modulus sign always negatives usually disappear how can you justify it

[bigirimanafrederic]

Center of enlargement from A' and A is not the same as the one from B' and B.Why?

[dorcasvarll]

The centre should be (3, 3)
Scale factor should be - 2

[kipkoriryegonleonard]

Your are wrong mwalimu..very wrong 😢😢😢😢