Measure and compute segments for room shapes that need security cameras installed

Can you simplify 4/7? 24 points will be awarded!

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.

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)