Which equations and graphs represent exponential decay? y=5x

Answer 1

The equation y=5x does not represent exponential decay. Exponential decay would be represented by an equation of the form y = a * (1 - r)^x, where a is the initial value, r is the rate of decay, and x is the time variable. Graphs of exponential decay would show a curve that decreases rapidly at first and then levels off as x increases.