Please help mee!!Its asking what is the percent increase!

For the equations below which statement is true ?

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.

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.