function-fitting code snippets in matlab

compute the best fitting (in the sense of least squares method) function of the form f(t)=a/t+b t=[10 4 -1 -1 -10 6 -7] f=[6 7 -3 5 3 -2 -3] calculate value at -2 in matlab

compute the best fitting (in the sense of least squares method) function of the form f(t)=at+btf−7−310−710−489−5−91−59−2 then its value at −10 is in matlab