Answer: A and B
Explanation:
Coefficient is the number or term that came before a variable.
If you can't understand this, I will provide some examples.
- Coefficient in 3x is 3, 3 came before x which is a variable
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2x + 9y + (-4)
2x: coefficient is 2
9y: coefficient is 9
-4: no coefficient, it is just a constant