which of the following is a linear interaction term used for modeling which term is used to describe interactions in r which terms of interaction include the quadratic term in a polynomial what is the interaction term of $a interaction terms in equations what term would be included in a linear equation when an interaction with a quadratic component is present does the linear component of a linear model include the quadratic term can an interaction term include a quadratic relationship what term is used in interactions with polynomials how to describe interaction in r how to describe interaction with a linear variable in r what is the interaction term for r what term are used to describe the interaction terms of linear r? why does r use interactions terms what type of interaction term is used for quadratic relations in r which interaction term is valid what is the interaction term with the linear variable what is the interaction term for linear explanatory variables what term is used in the equation for interaction with a linear explanatory variable what variables are interaction terms