Given the data points listed below, use the method of general least squares to find the expression y = ao + a1X1 + a2X2. Provide the value of ao in the box below. Round to one digit past the decimal point. X1 X2 y 19 -1 1 2 -5 -24 3 -7 -35 4 -8 -39 5 -10 -50

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