I need help with the code for this!

EXAMPLE 6.2-3 Breaking Strength and Alloy Composition We want predict the strength of metal parts as a function of their alloy composition. The tension force y required to hreak a steelhar is a function of the percentage r and of each of two alloying elements present in the metal. The following table gives some pertinent data. Ohtain a linear modely ao ayra ang to descrihe the relationship. 192 45 EXAMPLE 6.2-3 Breaking Strength and Alloy Composition We want predict the strength of metal parts as a function of their alloy composition. The tension force y required to hreak a steelhar is a function of the percentage r and of each of two alloying elements present in the metal. The following table gives some pertinent data. Ohtain a linear modely ao ayra ang to descrihe the relationship. 192 45