Which exponential function is represented by the table?

The answer is f(x) = 0.8(2^x)

Step-by-step explanation:

∵ f(x) = 0.8(2^x)

∵ x = -2 ⇒ ∴ f(-2) = 0.8(2^(-2)) = 0.2

∵ x = -1 ⇒ ∴ f(-1) = 0.8(2^(-1)) = 0.4

∵ x = 0 ⇒ ∴ f(0) = 0.8(2^(0)) = 0.8

∵ x = 1 ⇒ ∴ f(1) = 0.8(2^(1)) = 1.6

∵ x = 2 ⇒ ∴ f(2) = 0.8(2^(2)) = 3.2

∴ The answer is f(x) = 0.8(2^x) ⇒ The fourth answer