Using an exponential function, it is found that the value of Yong's investment account after 7 years is given by:
(C) $2363
It is modeled by:
[tex]y = ab^x[/tex]
In which:
Her account was worth $2000 initially, and it increases by 10%, percent every 4 years, hence, it is modeled by:
[tex]y(t) = 2000(1.1)^{\frac{t}{4}}[/tex]
After 7 years, the amount is:
[tex]y(7) = 2000(1.1)^{\frac{7}{4}} = 2363[/tex]
Hence option C is correct.
More can be learned about exponential functions at https://brainly.com/question/25537936