Answer:
y(20)=14,322
Step-by-step explanation:
We need to solve the equation:

with initial point

with incerments

By Euler's method, we have:

We start with the initial point

And we continue until we reach the value for y(20)

Answer:
For x=1 substituting in f(x) the value of x
f(1)=-3(1)+1 = -2
For x=0 substituting in g(x) the value of x
g(0)=3^(0) =1
Finally, we have to find for what value of x the function f(x) gives -8
f(x) = -8
-8 = -3x+1
-3x=-9
x=3