LESSON 2: Evaluation of a Function B. Evaluate each expression given the value(s) of the variable(s). 1. 3xy - 2x + 5 when x = - 1 and y = 2 . Solution. 3(-1)(2) – 2(-1) + 5 = -6 + 2 + 5 = 1 2. 2x2 – 3x + 4 when x = 2 Solution 2(2)2 – 3(2) + 4 = 2(4) - 3(2) + 4 = 6 2x+5 X+3 + c. 90 3. when x = 1 2(1)+5 2 Solution: (1)+3 (x²+1 4. g(x) if x < 0 x+1 if x 20 a. 9(-3) b. 9(-1 Solution: a. g(-3) = (-3)2 + 1 = 10 b. 9(-1) = (-1)² + 1 = 2 c. al (0) = ( (0) + 1 d. g(1) = (1) - 2 -3​