- A1
- B−1
- C0
- D−15
Step-by-Step Solution
Machine A leaves inputs unchanged, so it multiplies by 1 (the multiplicative identity). Machine B turns each input into its opposite, so it multiplies by .
Answer: B) −1
Each machine multiplies every input by its own fixed integer. Multiply Machine A's integer by Machine B's integer. What do you get?
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