3y-x=3 and x is 4 times the value of y, what is the value of x-y?

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

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

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3