To compare the growth rates of the functions \( h(x) = 1.2x \) and \( j(x) = 1.2^x \), Liam should analyze how these functions behave for large values of \( x \).
The function \( h(x) = 1.2x \) represents a linear growth, while \( j(x) = 1.2^x \) represents an exponential growth. Exponential functions grow faster than linear functions as the value of \( x \) increases.
Therefore, the correct statement is:
Liam should compare the rates of change of the terms in both sequences. The growth rate of \( j(x) = 1.2^x \) will quickly surpass the growth rate of \( h(x) = 1.2x \).