Why equals 2/3 X what is the constant of proportionality?

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

If a || b and e || f , what if the value of y ?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)