Question

how do you know if an exponential equation shows growth or decay?

Answer 1

the mulpication

Answer 2

i have already answered this, but the form is \[f(x)=a(b)^x\]

if the b is GREATER than 1, it's a growth-- b>1
if b is LESS than 1, it's a decay-- 0<b<1

so if b is a fraction (or decimal less than 1) it's a decay
if b is a whole number greater than 1 or a decimal greater than 1 (ex. 1.25) it's a growth