# How do you determine if the equation f(x) = 4(.07)^x represents exponential growth or decay?

Since, $g \left(x\right) = {a}^{x}$ is $\downarrow$ for $0 < , a < , 1 , f \left(x\right) = 4 {\left(0.07\right)}^{x}$ represents
Since, $g \left(x\right) = {a}^{x}$ is $\downarrow$ for $0 < , a < , 1 , f \left(x\right) = 4 {\left(0.07\right)}^{x}$ represents