# How do you introduce a chart?

## How do you introduce a chart?

To catch your audience’s attention from the very beginning, you can use the following phrases for introduction:Let me show you this bar graphLet’s turn to this diagramI’d like you to look at this mapIf you look at this graph, you will noticeLet’s have a look at this pie chart

## How do you describe a function on a graph?

The graph of the function is the set of all points (x,y) in the plane that satisfies the equation y=f(x) y = f ( x ) . A vertical line includes all points with a particular x value. The y value of a point where a vertical line intersects a graph represents an output for that input x value.

How do you tell if something is a function without graphing?

If a vertical line crosses the relation on the graph only once in all locations, the relation is a function. However, if a vertical line crosses the relation more than once, the relation is not a function. Using the vertical line test, all lines except for vertical lines are functions.

### How do you determine if something is a function?

A WAY easier (and faster), way to know if it is a function is to see if there are two of the same x-intercept (which make a vertical line). If there is, then it is NOT a function.

### What is a function and how can I identify one?

A relation has an input value which corresponds to an output value. When each input value has one and only one output value, that relation is a function. Functions can be written as ordered pairs, tables, or graphs.

How do you identify if a graph is a function?

To use the vertical line test, take a ruler or other straight edge and draw a line parallel to the y-axis for any chosen value of x. If the vertical line you drew intersects the graph more than once for any value of x then the graph is not the graph of a function.

#### How do you type a vertical line?

“|”, How can I type it?Shift-\ (“backslash”).German keyboard it is on the left together with and the Alt Gr modifier key must be pressed to get the pipe.Note that depending on the font used, this vertical bar can be displayed as a consecutive line or by a line with a small gap in the middle.

#### Is a straight up and down line a function?

Key Takeaways A function is a relation with the property that each input is related to exactly one output. A relation is a set of ordered pairs. The graph of a linear function is a straight line, but a vertical line is not the graph of a function.

What are the two straight lines in algebra?

Every number on the number line also has an absolute value, which simply means how far that number is from zero. The symbol for absolute value is two vertical lines. Since opposites are the same distance from the origin, they have the same absolute value.

## What does 2 straight lines around a number mean?

The symbol for absolute value is two straight lines surrounding the number or expression for which you wish to indicate absolute value. |6| = 6 means the absolute value of 6 is 6.

## What is the vertical line between words called?

The vertical bar, | , is a glyph with various uses in mathematics, computing, and typography. It has many names, often related to particular meanings: Sheffer stroke (in logic), verti-bar, vbar, stick, vertical line, vertical slash, bar, pike, or pipe, and several variants on these names.

What does a vertical line mean in probability?

The vertical bar is often called a ‘pipe’. It is often used in mathematics, logic and statistics. It typically is read as ‘given that’. In probability and statistics it often indicates conditional probability, but can also indicate a conditional distribution. You can read it as ‘conditional on’.

### How do you make a line when typing?

How to create a line in Microsoft Word and LibreOffice WriterSingle line – Type three hyphens (—) and press Enter.Bold single line – Type three underscores (___) and press Enter.Plain double lines – Type three equal signs (===) and press Enter.Dotted line – Type three asterisks (***) and press Enter.Wavy line – Type three tildes (~~~) and press Enter.