Answer:f(-4) = 10.636Step-by-step explanation:In this problem we need to substitute and add together the remaining termsf(x)=6−2+2e−0.3x If we simplifyf(x) = (6−2) +2e−0.3x f(x) = (4) +2e − 0.3x We substitute the value for e (Euler's number)e = 2.718f(x) = (4) +2(2.718) − 0.3x f(x) = (4) + 5.436 − 0.3x f(x) = 9.436 -0.3*xWe just need to substitute for x = -4 , to get f(-4)f(-4) = 9.436 -0.3*(-4)f(-4) = 9.436 + 1.2 f(-4) = 10.636