The graph below shows a proportional relationship between y and x what is the constant of proportionality y/x

What is the value of x in the diagram below?

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

Need on this geometry question. explain how you did it.