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put this solution on YOUR website!
All functions of the form y = k*ax
have a horizontal asymptote which is the x-axis
ans which has equation y=0.
That's because when 0.6 is a positive number
less than 1 and when you raise a positive number
less than 1 to larger and larger powers, the
result gets smaller and smaller and gets closer
and closer to nothing at all, namely 0.
Edwin