Answer:
When the base is less than 1 it's Decay
When the base is greater than 1 it's Growth
15.6
Step-by-step explanation:
f(x)= -1/2x-7 (better expressed as f(x) = (-1/2)x - 7 ) has a negative slope, so as x increases, y decreases. Answer D is correct.
i got 178