Problem
1. Given \( f(x)=\sqrt{x+2} \) and \( g(x)=3 x^{2} \), evaluate the following: a. \( f(-1) \) b. \( f(g(7)) \)
Solution
Step 1 ：a. f(-1) = \sqrt{-1 + 2}
Step 2 ：b. f(g(7)) = f(3 \times (7)^{2}) = f(147) = \sqrt{(147 + 2)}
Step 1 ：a. f(-1) = \sqrt{-1 + 2}
Step 2 ：b. f(g(7)) = f(3 \times (7)^{2}) = f(147) = \sqrt{(147 + 2)}
