# Year 10+ Coordinate Geometry

### Chapters

### What is the y-intercept of a Straight Line

# What is the y-intercept of a Straight Line

The **\(y\)-intercept** of a straight line is the point where the line crosses the \(y\)-axis. In other words, it's the point on the line where the \(x\)-value is zero.

Let's have a look at a few examples of straight lines and their \(y\)-intercepts.

## Example 1

In this graph, the line crosses the \(y\)-axis at \(y = 1\). So, the \(y\)-intercept is \(1\).

## Example 2

In this graph, the line crosses the \(y\)-axis at \(y = -2\). So, the \(y\)-intercept is \(-2\).

## Example 3

In this graph, the line crosses the \(y\)-axis at \(y = -1\). So, the \(y\)-intercept is \(-1\).

## Example 4

In this graph, the line crosses the \(y\)-axis at \(y = 2\). So, the \(y\)-intercept is \(2\).

### Description

A **coordinate geometry** is a branch of **geometry** where the position of the points on the plane is defined with the help of an ordered pair of numbers also known as **coordinates**. In this tutorial series, you will learn about vast range of topics such as Cartesian Coordinates, Midpoint of a Line Segment etc

### Audience

year 10 or higher, several chapters suitable for Year 8+ students.

### Learning Objectives

Explore topics related to Coordinates Geometry

Author: Subject Coach

Added on: 27th Sep 2018

`You must be logged in as Student to ask a Question.`

None just yet!