The correct response would be:
Austin should compare the steepness of the curves. The growth rate of f(x) = 1.3^x will quickly surpass the growth rate of g(x) = 1.3x.
This is because the function f(x) = 1.3^x (an exponential function) grows much faster than g(x) = 1.3x (a linear function) as x increases. The steepness of the exponential curve will exceed that of the linear curve after a certain point.