Which equations model exponential growth?

Select each correct answer.


Responses

​​y=0.25(2)x​ ​
​, ​, y equals 0.25 left parenthesis 2 right parenthesis to the power of x, ​, , ​
​y=2(0.20)x​
​, y equals 2 left parenthesis 0.20 right parenthesis to the power of x, ​
​y=4.2(1.25)x​
​, y equals 4.2 left parenthesis 1.25 right parenthesis to the power of x, ​
y=0.55(0.91)x