Final answer:
The value of f(-2) in the function f(x) = 2 · 2ˣ is 0.50 (option d).
Step-by-step explanation:
To find the value of f(x) = 2 · 2ˣ for f(-2), we substitute -2 into the function for x:
f(-2) = 2 · 2^-2
f(-2) = 2 · 1/2²
f(-2) = 2 · 1/4
f(-2) = 1/2
Therefore, the value of f(-2) is 0.50 (option d).