Similarly, by
choosing large values of x, one can verify that f(x) grows faster than fn (x) for any
positive integer n Definition 3 The exponential function with positive base b > 1 is the function
y = f (x) = bx
The graph of y = 10x is given in the Fig 5 9 It is advised that the reader plots this graph for particular values of b like 2, 3 and 4