I need help please quick!

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.

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b