How to find y intercept of an equation in mathematics? - ProProfs Discuss
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# How to find y-intercept of an equation in mathematics?

Asked by Marlon , Last updated: Sep 16, 2020

#### Barry Mclean

Barry Mclean, Sales Manager, MBA, Ewa

There are so many methods you can use to find the y-intercept of an equation. Here, I will try as much as possible to give the simplest one. In this method, before you can find the y-intercept of an equation, you will need to know the slope of the equation.

The slope is usually calculated using the graph where you divide the coordinate of the y-axis by that of the x-axis. Let's assume the slope of an equation is 3, and it contains the points (1, 5), you can find the y-intercept of this line by using this formula, y = mx + b.

From this equation, b is the y-intercept, x, and y are the two points given in the question. At this point, all we need to do is to substitute each letter for the appropriate value as given in the question so as to find the value of "b." From the equation b=y-mx. b=5 - (3×1)=2. Therefore, the y-intercept of this equation is at y=2.

#### Matz Lewis Clark

Traveler and writer by profession.

Matz Lewis Clark, College student, Graduation, Orlando

A linear equation is a type of equation that you can find in a straight line. The equation will be written as y=mx+b. The y-intercept is known as the point that you can find in a line wherein the y-axis will be crossed. The y-intercept is definitely important.

These are some of the other things that you should do:

a. Get to know the slope, which will be written as (m).

b. Remember that the y-intercept will be written as b.

c. Substitute the numbers so that you can start solving them with the use of the formula.

Always replace the different coordinates because you may find some trouble looking for the right solution.

#### G. Roland

G. Roland, Professor, Austin

Yes is a word used across all languages. It is a word that shows acceptance or agreement of something. In German, there are various ways to say the word, Yes. One way is to use the word Ja. Though the word has a J, the J is pronounced like a Y.

So, when a person says this word, it will sound like Ya. The a in the word should also be drawn out to sound like "Ah." If a person wants to be more polite, they will use the word "bitte" at the end of it, which would mean Yes, please.

#### J. Shatner

J. Shatner, Content writer, Boston

The equation of straight-line graph called the linear equation can be written as y=mx+b here m is the variable of the slope, and b is the y-intercept. The y-intercept of an equation is a point where the graph of the equation intercepts the y-axis.

There are different ways in which one can find the y-intercept of an equation. It is easier to find the y-intercept from the slope.

Here are a few steps you can take

1. Write down the slope, in which you have to x the y and right coordinate.
2. Learn the slope-intercept form of an equation recall y=mx+b
3. Substitute the slope into y=mx+b
4. Replace x and y with the coordinates of the point
5. Solve for b and rite this as a coordinate point