KoreanSAT / data /json /2025 /math_4.txt
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4. ν•¨μˆ˜
\[
f(x) =
\begin{cases}
5x + a & (x < -2) \\
x^2 - a & (x \geq -2)
\end{cases}
\]
κ°€ μ‹€μˆ˜ μ „μ²΄μ˜ μ§‘ν•©μ—μ„œ 연속일 λ•Œ, μƒμˆ˜ $a$의 값은? [3점]
\begin{itemize}
\item[1] 6
\item[2] 7
\item[3] 8
\item[4] 9
\item[5] 10
\end{itemize}