What Is a Linear Equation (in SlopeIntercept Form)?
What Is a Linear Equation (in SlopeIntercept Form)?
A linear equation is an equation that represents a line.
A linear equation can be written in the form:
On a graph, a linear equation looks like a line:

y and x are the Cartesian coordinates of points on the line.

m is the slope of the line. It tells you the steepness of the line.

c is the yintercept of the line. It tells you the ycoordinate of where the line crosses the yaxis.
A Real Example of a Linear Equation in SlopeIntercept Form
An example of a linear equation in slopeintercept form is given below:
If we compare this equation to y = mx + c, we can find the slope and yintercept.

The number in front of the x is the slope.
y = 2x + 1
The slope is 2.

The number on its own is the yintercept.
y = 2x + 1
The yintercept is 1.
Read more about finding the yintercept from a linear equation
Other Forms of Linear Equations
There are other forms of linear equation.

The general form of a linear equation is:

The slopepoint form of a linear equation is:
m is the slope of the line, and the point (x_{1}, y_{1}) is a point (in Cartesian coordinates) on the line.