Barre chord
fret 8, A shapex-8-10-12-10-8
Fadd9 is the F added 9 chord. Its notes are F, A, C and G. A major triad plus the ninth, without a seventh. Let the upper notes ring.
x-8-10-12-10-8
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every F, A, C and G on the first 12 frets. The filled dots are the root, F. Build your own shape from any nearby group.
Other F chords
Other added 9 chords