IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => IGCSE/ GCSE => Math => Topic started by: NotAbod on March 26, 2011, 09:36:04 pm

Title: enlargement inverse
Post by: NotAbod on March 26, 2011, 09:36:04 pm

we can find translation's and rotation's inverse
but is there enlargement inverse? or shear and stretch inverse?

Title: Re: enlargement inverse
Post by: astarmathsandphysics on March 27, 2011, 09:55:06 am

Inverse of enlargement scale factor k is enlargement scale factor 1/k. The shape is smaller

Title: Re: enlargement inverse
Post by: NotAbod on March 28, 2011, 02:06:09 pm

Quote from: astarmathsandphysics on March 27, 2011, 09:55:06 am

Inverse of enlargement scale factor k is enlargement scale factor 1/k. The shape is smaller

thanks  ;D ;D

Title: Re: enlargement inverse
Post by: rainbowtiara24 on May 08, 2011, 06:28:46 am

but isn't there something like if factor is negative then it should be on the other side of center of enlargement ? or in case of stretch / shear in another quadrant ?