Answer:
The choose (D)
Step-by-step explanation:

Answer:
a² = 16
Step-by-step explanation:
substitute a = 4 into the expression
a² = 4² = 4 × 4 = 16
It is non-linear, you can tell because it’s not evenly proportional, -2 to 0 is +2, but 0 + 2 is 2
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