Answer:
![f(x) = {x}^(2) - 15x + 26](https://img.qammunity.org/2021/formulas/mathematics/middle-school/sf9ccvhhpx22zvj7jl88sax8s63ap71jdo.png)
Explanation:
Assuming we want to write a quadratic function with intercepts x=13 and x=2.
Then we can work backwards.
This means that:
x-13=0 and x-2=0
The factored form of this quadratic function becomes:
![f(x) = (x - 13)(x - 2)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/2ne44o4bdlidw6njqnnxvrm5qp0q0b8k7a.png)
We expand to get:
![f(x) = {x}^(2) - 2x - 13x + 26](https://img.qammunity.org/2021/formulas/mathematics/middle-school/9v3yr43yhvoz49jmz4jewyj535fqbfcm98.png)
We simplify to obtain:
![f(x) = {x}^(2) - 15x + 26](https://img.qammunity.org/2021/formulas/mathematics/middle-school/sf9ccvhhpx22zvj7jl88sax8s63ap71jdo.png)