Is it a linear function given by: y = 2x-3.

A linear function is a function whose right-hand side is represented as a polynomial with a variable whose highest degree is 1 and is an integer. That is, if the right-hand side of such a function is equated to 0, then a linear equation will be obtained.

The graph of such a function is built using two points, since a straight line and only one can be drawn through two points.

Since the variable x in the expression 2 * x – 3 has the highest degree equal to 1, this expression is linear. Thus, the function specified by the condition is linear.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.