The triangle ABC has been dilated such that the length of each side has been reduced by a factor of 3/4.
Observe closely the distance from point A to point C and the distance from point A' to point C';
Point A to C measures 4 units, while point A' to C'measures 3 units, so the dilation factor is 3/4 of the original length. The same applies to the other two sides.
Hence the algebraic expression to explain this;
[tex](x,y)\rightarrow(\frac{3}{4}x,\frac{3}{4}y)[/tex]So the correct answer is option B