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967 Example 7.34. The following table gives the values of x and y: 1.2 2.1 2.8 4.1 4.9 4.2 6.8 9.8 13.4 15.5 Find the value of x corresponding to y = 12, using Lagrange's technique. 6.2 19.6 967 Example 7.34. The following table gives the values of x and y: 1.2 2.1 2.8 4.1 4.9 4.2 6.8 9.8 13.4 15.5 Find the value of x corresponding to y = 12, using Lagrange's technique. 6.2 19.6