Question

Which is the graph of f(x) = 441?

61
B
SA
4
4
3
3
2
2
1
1
2
3
4.
S
B

Answer 1

Middle graph is the graph of f(x)=4(1/2)^x

Explanation:

plot a couple of easy points and find which graph has those points on the line.

f(0) = 4(1/2)^0 = 4

f(x) = 4(1/2)^1 = 2

f(2) = 4(1/2)^2 = 1

All these points fall on the line in the middle graph.