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

**Slope-Intercept Form Equation** – There are many forms that are used to illustrate a linear equation among the ones most commonly used is the **slope intercept form**. You may use the formula for the slope-intercept to determine a line equation, assuming that you have the straight line’s slope as well as the y-intercept, which is the point’s y-coordinate at which the y-axis meets the line. Read more about this particular line equation form below.

## What Is The Slope Intercept Form?

There are three basic forms of linear equations: the traditional slope, slope-intercept and point-slope. While they all provide similar results when used in conjunction, you can obtain the information line produced more quickly using an equation that uses the slope-intercept form. The name suggests that this form employs a sloped line in which it is the “steepness” of the line reflects its value.

This formula can be used to discover the slope of straight lines, the y-intercept (also known as the x-intercept), where you can apply different formulas available. The line equation of this formula is **y = mx + b**. The slope of the straight line is symbolized in the form of “m”, while its y-intercept is represented with “b”. Each point of the straight line can be represented using 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

In the real world in the real world, the slope-intercept form is commonly used to illustrate how an item or problem evolves over it’s course. The value that is provided by the vertical axis demonstrates how the equation deals with the extent of changes over the value given with the horizontal line (typically time).

A simple example of this formula’s utilization is to find out the rate at which population increases in a certain area as the years pass by. Using the assumption that the area’s population increases yearly by a certain amount, the values of the horizontal axis will grow one point at a moment for every passing year, and the point value of the vertical axis will increase to reflect the increasing population according to the fixed amount.

Also, you can note the beginning value of a challenge. The starting point is the y-value of the y-intercept. The Y-intercept marks the point at which x equals zero. By using the example of the above problem the starting point would be the time when the reading of population begins or when the time tracking starts along with the associated changes.

So, the y-intercept is the point where the population starts to be monitored for research. Let’s assume that the researcher began to do the calculation or the measurement in 1995. This year will represent the “base” year, and the x=0 points would occur in the year 1995. Thus, you could say that the 1995 population represents the “y”-intercept.

Linear equations that employ straight-line formulas can be solved in this manner. The starting value is depicted by the y-intercept and the rate of change is expressed through the slope. The primary complication of the slope intercept form is usually in the horizontal variable interpretation particularly when the variable is attributed to the specific year (or any kind or unit). The first step to solve them is to ensure that you understand the variables’ definitions clearly.