Answer: f (4) = 9
Explanation:
f (x) = 2x + 1
f (4) = 2 (4) + 1
f (4) = 8 + 1
f (4) = 9
Answer:
plug in 4 for x then simplify
= 2(4) + 1
= 8 + 1
= 9
hope this helps <3
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