**What Is The Y Axis On A Graph? A y-axis is the vertical axis on the Cartesian coordinate plane. The y-axis starts at negative infinity and increases to positive infinity. The y-axis is also the starting, or 0 point, for measuring how far a point extends horizontally on a graph.**

**What does the y-axis represent on a graph? **A line graph has two axes. The x-axis of a line graph shows the occurrences and the categories being compared over time and the y-axis represents the scale, which is a set of numbers that represents the data and is organized into equal intervals.

**Where is the y-axis on a graph? **A coordinate grid has two perpendicular lines, or axes (pronounced AX-eez), labeled just like number lines. The horizontal axis is usually called the x-axis. The vertical axis is usually called the y-axis. The point where the x- and y-axis intersect is called the origin.

**Which way is y-axis? **The x-axis is a horizontal line and the y-axis is a vertical line.

## What is a reflection over the y-axis?

When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is taken to be the additive inverse.

## What is the Y coordinate?

Definition of y-coordinate : a coordinate whose value is determined by measuring parallel to a y-axis specifically : ordinate.

## How do you read points on a graph?

Points are identified by stating their coordinates in the form of (x, y). Note that the x-coordinate always comes first. For example, in the figure we’ve been using, we have identified both the x and y coordinate for each of the points B and D. The x-coordinate of point B is 100.

## How do you remember the y-axis?

The x-axis is horizontal, and the y-axis is vertical. One way to remember which axis is which is ‘x is a cross so the.

## How do you reflect y-axis?

The rule for a reflection over the y -axis is (x,y)→(−x,y) .

## What does it mean to reflect over Y 1?

the line y=1 is a horizontal line passing through all. points with a y-coordinate of 1. the point (3,10) reflected in this line. the x-coordinate remains in the same position.

## What is Y value?

The vertical value in a pair of coordinates. How far up or down the point is. The Y Coordinate is always written second in an ordered pair of coordinates (x,y) such as (12,5). In this example, the value “5” is the Y Coordinate. Also called “Ordinate”

## How do you find the y value?

Finding the y value is easy if you know the slope of the line and the x coordinate. Review the equation for the slope of a line. The equation for finding the slope is: m = [y1 – y2] / [x1 – x2]. If you know x, you can solve for y to find the y value for the slope of the line.

## What does Y represent?

Graphically they represent a point where x is the horizontal axis coordinate, and y is the vertical axis coordinate.