Question

Which equation represents exponential growth?

y = 1/3 (0.1)^x
y = (7)^x
y = (0.25)^x
y = (2/3)^x

Answer 1

Exponential growth occurs when the base is greater than 1. Only y = 7^x has base 7 (>1), so that's the exponential growth function. The others have bases < 1 and are exponential decay.