Problem
Question 8 If $f(x)=x^{2}-3 x+4$, find $f(-2)$.
Solution
Step 1 ：The function \(f(x)=x^{2}-3 x+4\) is a quadratic function. We can substitute \(x\) with \(-2\) directly into the function.
Step 2 ：After substituting \(x\) with \(-2\) in the function \(f(x)=x^{2}-3 x+4\), we get \(f(-2) = 14\).
Step 3 ：Final Answer: \(f(-2) = \boxed{14}\).
