What is linear equation definition and example?

The equation for a straight line is the linear equation. Since linear usually stands for anything straight or in a line, thus the equation for lines in the xy plane is said as linear equation. For example, 2x+3y = 5 is a linear equation in two variables.

What is the definition of linear equation in math?

noun Mathematics. a first-order equation involving two variables: its graph is a straight line in the Cartesian coordinate system. any equation such that the sum of two solutions is a solution, and a constant multiple of a solution is a solution.

What is called linear equation?

A linear equation looks like any other equation. It is made up of two expressions set equal to each other. When you find pairs of values that make the linear equation true and plot those pairs on a coordinate grid, all of the points for any one equation lie on the same line.

What is the meaning of linear?

1a(1) : of, relating to, resembling, or having a graph that is a line and especially a straight line : straight. (2) : involving a single dimension. b(1) : of the first degree with respect to one or more variables.

What is linear equation Give 5 example?

Solve (i) 3x − 1=5 (ii) 4x +2=9 (iii) 6 − 2x = 1 (iv) 5x +1= −9 (v) 3x +1= x − 5 (vi) 6x − 1=3 − 2x (vii) 2 − 3(x − 2) = x + 4 (viii) 5(x − 1) + 1 = 2(x − 2). In general, a linear equation in one variable has just one solution, i.e., a unique solution.

Why linear equation is called linear?

The left-hand side is an expression; we call it a linear expression, because if you used it in an equation with two variables, y = 2x+4, its graph would be a straight line. So the linear equation can be thought of very much in terms of a line.

What are the types of linear equations?

There are three major forms of linear equations: point-slope form, standard form, and slope-intercept form.

How do you identify a linear equation?

Choose x values that are a constant numerical distance from each other. For example, put x values of -4, -2, 2 and 4 into the equation and solve for y for each value. Calculate the differences between the y values. If the differences are constant, or the same value, the equation is linear and has a constant slope.

How do you plot a linear equation?

To graph a linear equation, we can use the slope and y-intercept.Locate the y-intercept on the graph and plot the point.From this point, use the slope to find a second point and plot it.Draw the line that connects the two points.

What’s another word for linear?

In this page you can discover 31 synonyms, antonyms, idiomatic expressions, and related words for linear, like: rectilinear, nonlinear, lineal, in the direction of a line, threadlike, extended, direct, lineiform, analogue, planar and cubic.

What is the root word of linear?

linear (adj.) “resembling a line, of or pertaining to lines,” 1640s, from French linéaire, from Latin linearis “belonging to a line,” from linea “string, line” (see line (n.