There is an equation for a graph that I am confused about, it's quite long, so i'll just explain the confusing bit.

y=(x+1)^8 / |x+1|^8

(you'll have to make do with that as i can't make it look prettier)

What do the | straight line brackets mean? i thought they would just mean the same as normal ones, but they can't because then that bit of the equation would always equal 1?

The internet doesn't help because google doesn't understand the | symbol, I hope this forum can!