Answer:
f(-5)= 10.9
Step-by-step explanation:
We know the the function is
f(x)=6−2+2e−0.3x
We group terms
f(x)=(6−2)+2e−0.3x
f(x)=(4)+2e−0.3x
We substitute the value for e (Euler's number)
f(x)=(4)+2(2.7183) −0.3x
We add together
f(x)=(4)+2(2.7183) −0.3
f(x)=(4)+5.4366 −0.3x
f(x)= 9.4366 − 0.3x
We substitute x = -5
f(-5)= 9.4366 − 0.3(-5)
f(-5)= 9.4366 + 1.5
f(-5)= 10.9366
f(-5)= 10.9
