The expression gives the number of patents in 1998 is the exponential function y = 60(1.2)⁷
Let y represent the number of nano-related patents that are granted in the US x year after 1991
In 1991 there were 60 nano-related patents and they increase by a factor of 1.2, hence:
y = 60(1.2)ˣ
In 1998 (7 years):
y = 60(1.2)⁷
The expression gives the number of patents in 1998 is the exponential function y = 60(1.2)⁷
Find out more on exponential function at: https://brainly.com/question/12940982
