## The Definition, Formula, and Problem Example of the Slope-Intercept Form

**Slope Intercept Form From A Graph** – One of the many forms used to depict a linear equation, the one most frequently seen is the **slope intercept form**. You can use the formula for the slope-intercept in order to determine a line equation, assuming that you have the straight line’s slope as well as the yintercept, which is the y-coordinate of the point at the y-axis crosses the line. Learn more about this particular line equation form below.

## What Is The Slope Intercept Form?

There are three main forms of linear equations: the traditional, slope-intercept, and point-slope. Though they provide identical results when utilized in conjunction, you can obtain the information line that is produced faster with an equation that uses the slope-intercept form. Like the name implies, this form uses a sloped line in which you can determine the “steepness” of the line determines its significance.

The formula can be used to determine the slope of a straight line. It is also known as the y-intercept (also known as the x-intercept), in which case you can use a variety of formulas available. The line equation in this specific formula is **y = mx + b**. The slope of the straight line is indicated with “m”, while its intersection with the y is symbolized by “b”. Each point of the straight line is represented by an (x, y). Note that in the y = mx + b equation formula the “x” and the “y” must remain as variables.

## An Example of Applied Slope Intercept Form in Problems

For the everyday world, the slope intercept form is frequently used to represent how an item or issue evolves over it’s course. The value that is provided by the vertical axis demonstrates how the equation handles the intensity of changes over the value given via the horizontal axis (typically time).

A simple example of this formula’s utilization is to figure out the rate at which population increases in a certain area as the years pass by. If the population in the area grows each year by a fixed amount, the value of the horizontal axis will rise one point at a moment with each passing year and the point values of the vertical axis will increase to show the rising population by the fixed amount.

It is also possible to note the beginning point of a challenge. The beginning value is at the y-value in the y-intercept. The Y-intercept is the point where x is zero. By using the example of a problem above the beginning point could be at the time the population reading begins or when the time tracking starts, as well as the associated changes.

Thus, the y-intercept represents the point in the population where the population starts to be recorded to the researchers. Let’s suppose that the researcher is beginning to do the calculation or measurement in the year 1995. In this case, 1995 will serve as considered to be the “base” year, and the x = 0 points would be in 1995. Thus, you could say that the population in 1995 corresponds to the y-intercept.

Linear equations that use straight-line formulas can be solved in this manner. The starting point is expressed by the y-intercept and the change rate is represented through the slope. The most significant issue with the slope-intercept form generally lies in the interpretation of horizontal variables especially if the variable is accorded to an exact year (or any kind in any kind of measurement). The trick to overcoming them is to ensure that you know the meaning of the variables.