#Linear equation maker how to

This means: You calculate the difference of the y-coordinates and divide it by the difference of the x-coordinates.

#Linear equation maker how to

How to calculate the equation of a linear function from two given points?įirst, we have to calculate the slope m by inserting the x- and y- coordinates of the points into the formula. Therefore, the equation of the function is General form of the linear function: f(x)=mx+b Here is an example: Lets assume we know that our function has slope and goes through (-2|5).Ĭalculate the y-axis intercept b by inserting: the one coordinate for x and the other one for f(x).

You have to insert the point into the equation, i.e. How to calculate the equation of the line from a point and the slope? If you take a look on the function graphs, you see that intersects the y-axis at intersects the y-axis at. As the name says, it says where the function cuts the y-axis. The y-line intercept is the number at the end of the function. What is the y-line intercept of a linear function? This means whenever we go one square to the right, we have to go three squares down to be on the graph again. If we go one square to the right of any point on the graph, we have to go two squares up to be on the graph again.Īnother example, this time with negative slope:

It says how may units you have to go up / down if you go one unit to the right. The slope of a linear function corresponds to the number in front of the x. The graph of a linear function is always a line.Ī similar word to linear function is linear correlation. Here is an example:ĭein Browser unterstützt den HTML-Canvas-Tag nicht. The general form of a linear function is, where m is the slope and b is the y-axis intercept.

A linear function is a function whose graph is a line.