[tex]\text{Hello there!}\\\\\text{Plug -2 into x}\\\\f(x)= 9+3(-2)\\\\\text{Solve:}\\\\f(x)= 9+3(-2)\\\\f(x)= 9-6\\\\f(x)=3\\\\\boxed{f(x)=3}[/tex]
From the given function, the value of f(-2) is 3. The correct option is C- 3
From the question, the given function is f(x) = 9 + 3x
To determine the value of f(-2), we will put x = -2 and then evaluate,
From the given function
f(x) = 9 + 3x
Put x = -2
Then, we get
f(-2) = 9 + 3(-2)
f(-2) = 9 + (3× -2)
f(-2) = 9 + (-6)
Then,
f(-2) = 9 + -6
(NOTE: +×- = -)
f(-2) = 9 - 6
f(-2) = 3
Hence, from the given function, the value of f(-2) is 3. The correct option is C- 3
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