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padilas [110]
4 years ago
13

If f(x)=2x+9, then f(-1)= _____

Mathematics
1 answer:
Pavlova-9 [17]4 years ago
4 0

Answer:

  f(-1) = 7

Step-by-step explanation:

Put -1 where x is and do the arithmetic.

  f(-1) = 2(-1) +9 = 7

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