1) f(0,2) = 30.2 - 0.20.2 = 0.6 - 0.04 = 0.52) f(-15) = 3(-15) - 0.2(-15)^2 = -45 - 0.2225 = -45 - 45 = -93) f(2/3) = 3(2/3) - 0.2(2/3)^2 = 2 - 0.2(4/9) = 2 - 0.8/9 = 2 - 0.0888... = 1.9111...
1) f(0,2) = 30.2 - 0.20.2 = 0.6 - 0.04 = 0.5
2) f(-15) = 3(-15) - 0.2(-15)^2 = -45 - 0.2225 = -45 - 45 = -9
3) f(2/3) = 3(2/3) - 0.2(2/3)^2 = 2 - 0.2(4/9) = 2 - 0.8/9 = 2 - 0.0888... = 1.9111...