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Mathematics
Quinn Adams
16 February, 10:40
If f (x) = 3x + 7, find:
f (3) = [? ]
+1
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Evangeline Allison
16 February, 11:56
0
Answer: 16
Step-by-step explanation: f (x) = 3x + 7 means that if we put an x into our function, a 3x + 7 comes out.
So if we want to find f (3), we're putting a 3 into our function which means that a 3 (3) + 7 comes out which simplifies to 9 + 7 or 16.
So f (3) = 16 or the value of the function at 3 equals 16.
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Picasso
16 February, 13:03
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f (3) = 16
Step-by-step explanation:
f (x) = 3x + 7
Let x = 3
f (3) = 3*3 + 7
= 9+7
= 16
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