1.\:\:horizontal\:asymptotes\:2^{x}
2.\:\:horizontal\:asymptotes\:3^{x}
3.\:\:horizontal\:asymptotes\:2^{x+1}
4.\:\:horizontal\:asymptotes\:3^{x}-1
5.\:\:horizontal\:asymptotes\:2^{x-3}
6.\:\:horizontal\:asymptotes\:2^{x}-3
7.\:\:horizontal\:asymptotes\:5^{x}+3
8.\:\:horizontal\:asymptotes\:f(x)=4^{-2x+2}
9.\:\:horizontal\:asymptotes\:f(x)=4^{-x+1}-1
10.\:\:horizontal\:asymptotes\:-4^{x+1}