Exponential equation are functions defined by [tex]y =ab^x[/tex]
The equation that could represent Rainey graph must take the form [tex]y =15b^x[/tex]
How to determine the equation
An exponential equation is represented as:
[tex]y =ab^x[/tex]
Where:
- a represents the initial value
- b represents the rate
The initial value (a) is 15.
So, the equation becomes
[tex]y =15b^x[/tex]
The graph is not given;
So, the equation cannot be determined.
Assume that the rate is 2.
Then the function would be: [tex]y =15(2)^x[/tex]
Read more about exponential functions at:
https://brainly.com/question/11464095
