Final answer:
The exponential function f(x) = 13(2)^x + 9 evaluated at x = 0 is 22.
Step-by-step explanation:
To evaluate the exponential function f(x) = 13(2)x + 9 at x = 0, we can substitute the value of x into the function. Since any number raised to the power of 0 is 1, 20 equals 1. Therefore, f(0) = 13(1) + 9. Performing the calculation gives us f(0) = 13 + 9, which equals 22. The function evaluated at x = 0 is 22.