Final answer:
To find f(-3) for the function f(x) = x² - 5x + 6, substitute -3 into the function to get f(-3) = (-3)² - 5(-3) + 6, which simplifies to f(-3) = 30.
Step-by-step explanation:
The student is asking to find the value of f(-3) for the given function f(x) = x² - 5x + 6. To find this value, simply substitute x with -3 in the function:
- f(-3) = (-3)² - 5(-3) + 6
- f(-3) = 9 + 15 + 6
- f(-3) = 30
Therefore, the value obtained for f(-3) is 30.