Sagot :
Answer:
1.In mathematics, a linear equation is an equation that may be put in the form (see from attached photo)
1.In mathematics, a linear equation is an equation that may be put in the form (see from attached photo)2.In the case of two variables, each solution may be interpreted as the Cartesian coordinates of a point of the Euclidean plane. The solutions of a linear equation form a line in the Euclidean plane, and, conversely, every line can be viewed as the set of all solutions of a linear equation in two variables. This is the origin of the term linear for describing this type of equations. More generally, the solutions of a linear equation in n variables form a hyperplane (a subspace of dimension n − 1) in the Euclidean space of dimension n.
Step-by-step explanation:
reminder: answer in 1 and 3 is on the attached photo.



