15. Which of the following statements is always true about the function y = a(b)*?
o
When a > 0 and b > 1, the
function models exponential decay.
e
When a > 0 and b > 1, the
function models exponential
growth
e
O
When a > 0 and 0 < b < 1, the
function models exponential
growth
When a < 0 and 0 function models exponential decay.