Problem
\[ f(x)=\left\{\begin{array}{ll} 5 x+4, & x<0 \\ 5 x+6, & x \geq 0 \end{array}\right. \] (a) \( f(-1) \) (b) \( f(0) \) (c) \( f(2) \)
Solution
Step 1 ：\(f(-1)=5(-1)+4=-5+4=-1\)
Step 2 ：\(f(0)=5(0)+6=0+6=6\)
Step 3 ：\(f(2)=5(2)+6=10+6=16\)
