posted by Gabriela .
How can I find the horizontal asymptote of:
i know you have to do the limit as x approaches infinity... but that is about all i know...
mulitply the numberator and denominator by e^-x
y= e^0/(2e^0 + 5e^-x)
y= 1/(2 + 5e^-x)
now, take lim as x >> int. Notice the e^-x goes to zero.
y= 1/2 as x approaches zero.