1/(x + 5 + 2) = 1/(x + 7)
when working with fractions, you can't divide by 0 so set x + 7 = 0
then x cannot equal -7
so Domain is all reals except -7
you have a vertical asymptote at x = -7 and a horizontal at y = 0
if you don't have a graphing calculator then use an x-y table to plot other points