Can someone me i don’t know what to do

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.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Factor the polynomial by its greatest common monomial factor.