Rocket Experiments Narrative an Engineer Was Investigating the Relationship Between the Thrust of the Thrust

Essay

Rocket Experiments Narrative
An engineer was investigating the relationship between the thrust of an experimental rocket (y), the percent composition of a secret chemical in the fuel (x₁), and the internal temperature of a chamber of the rocket (x₂). The engineer starts by fitting a quadratic model, but he believes that the full quadratic model is too complex and can be reduced by including only the linear terms and the interaction term.
-Refer to Rocket Experiments Narrative. Write the two models the engineer is considering.