\[x = 2 \Longrightarrow y = \sqrt{2} \approx 1,4\]
\[x = 3,5 \Longrightarrow y = \sqrt{3,5} \approx 1,87\]
\[x = 5,2 \Longrightarrow y = \sqrt{5,2} \approx 2,28\]
\[x = 8,5 \Longrightarrow y = \sqrt{8,5} \approx 2,92\]