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If \(\Delta x = x\) for \(x \ge 0\) and \(\Delta x =2x\) for \(x < 0, \dfrac{\Delta 30}{\Delta(-5)}=\)
A. -12
B. -6
C. -3
D. 6
E. 30
Answer: C
Source: Princeton Review
A. -12
B. -6
C. -3
D. 6
E. 30
Answer: C
Source: Princeton Review
