Question

Which of the following exponential functions goes through the points (1, 20) and (2, 80)?
O f(x) = 5(4)-
O f(x) = 4(5)-*
O f(x) = 5(4)*
O f(x) = 4(5)*

Answer 1

Answer:

f(x) = 5(4)^x is the correct answer