KoreanSAT / data /json /2022 /math_9.txt
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9. 직선 \( y = 2x + k \) κ°€ 두 ν•¨μˆ˜
\[
y = \left( \frac{2}{3} \right)^{x+3} + 1, \quad y = \left( \frac{2}{3} \right)^{x+1} + \frac{8}{3}
\]
의 κ·Έλž˜ν”„μ™€ λ§Œλ‚˜λŠ” 점을 각각 \( \mathrm{P} \), \( \mathrm{Q} \)라 ν•˜μž. \( \overline{\mathrm{PQ}} = \sqrt{5} \)일 λ•Œ, μƒμˆ˜ \( k \)의 값은? [4점]
\begin{itemize}
\item[1] \( \frac{31}{6} \)
\item[2] \( \frac{16}{3} \)
\item[3] \( \frac{11}{2} \)
\item[4] \( \frac{17}{3} \)
\item[5] \( \frac{35}{6} \)
\end{itemize}