A

**point**-to-**point graph**, also called a line**graph**, is a pictorial rendition of data in which specific values of a function are plotted as dots on a coordinate plane. Adjacent pairs of dots are connected by straight lines.Similarly, how do you identify points on a graph?

**To find the x-coordinate of a point on a graph:**

- Draw a straight line from the point directly to the x-axis.
- The number where the line hits the x-axis is the value of the x-coordinate.

What is an XY graph?

A

**Scatter**(**XY**)**Plot**has points that show the relationship between two sets of data. In this example, each dot shows one person's weight versus their height. (The data is plotted on the**graph**as "Cartesian (x,y) Coordinates")1

## How do you identify a point on a graph?

**To find the x-coordinate of a point on a graph:**

- Draw a straight line from the point directly to the x-axis.
- The number where the line hits the x-axis is the value of the x-coordinate.

2

## How do you read a graph?

**Steps**

- Identify what the graph represents.
- Check the scale for each graph element.
- Locate the graph element you want information on.
- Read directly up from "August" until you find a dot or a slanting line, on a line graph, or the top of a bar for a bar graph.

3

## How do you plot coordinates on a graph?

**To graph**a point, first locate its position on the x-axis, then find its location on the y-axis, and finally

**plot**where these meet. The center point of the

**graph**is called the origin and is written as the point (0, 0) because it's located at the zero point on the x-axis and the zero point on the y-axis.

4

## What is the plot point?

In television and film, a

**plot point**is a significant event within a**plot**that spins the action around in another direction. Noted screenwriting teacher Syd Field discusses**plot points**in his paradigm, popularized in his book Screenplay: The Foundations of Screenwriting.5

## What is an ordered pair on a graph?

Coordinate system and

**ordered pairs**. A point is named by its**ordered pair**of the form of (x, y). The first number corresponds to the x-coordinate and the second to the y-coordinate. To**graph**a point, you draw a dot at the coordinates that corresponds to the**ordered pair**.6

## How do you know if it's positive or negative slope?

**Negative Slope**.

**If a line has a positive slope**(i.e. m > 0), then y always increases when x increases and y always decreases when x decreases. Thus, the graph of the

**line**starts at the bottom left and goes towards the top right.

7

## What is an XY graph?

A

**Scatter**(**XY**)**Plot**has points that show the relationship between two sets of data. In this example, each dot shows one person's weight versus their height. (The data is plotted on the**graph**as "Cartesian (x,y) Coordinates")8

## What is the line on a graph called?

A

**line**chart or**line graph**is a type of chart which displays information as a series of data points**called**'markers' connected by straight**line**segments. It is a basic type of chart common in many fields.9

## What is the mapping rule for a 180 rotation?

When you rotate the image using the 90

**degrees**rule, the end points of the image will be (-1, 1) and (-3, 3). The rules for the other common degree rotations are: For 180**degrees**, the rule is (x, y) --------> (-x, -y) For 270**degrees**, the rule is (x, y) --------> (y, -x)10

## What is the difference between a line graph and a scatter plot?

**Scatter plots**show how much one variable is affected by another.

**Line graphs**are like

**scatter plots in**that they record individual data values as marks on the

**graph**. The

**difference**is that a

**line**is created connecting each data point together.

**In**this way, the local change from point to point can be seen.

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## How do you plot points on a graphing calculator?

To do this, select STAT EDIT . You should see headings L1, L2, and L3. List the input values from your data

**points**under L1, and the output values under L2. To display the data**points**that you just typed in, you need to tell the**calculator**that you want to**plot**your data**points**instead of a standard function y = f(x).12

## How do you draw a graph?

**How to Draw a Graph**

- Draw the x axis. Make a horizontal line on the paper.
- Draw the y axis. Make a vertical line that passes through the origin of the x axis.
- Calculate the values of y for several values of x.
- Mark the ordered pairs on the graph.
- You have created a graph of the function f(x) = 2x.

13

## How do you find the slope of a line on a graph?

Remember that the

**slope**of a line never changes, so you can choose whatever 2 points you want and you will always**get**the same**slope**. Calculate the rise and run (You can draw it on the**graph**if it helps). The**slope**is 2/4, which , of course, you can simplify to ½.14

## How do you label a graph?

When presented with your

**graph**, other people should be able to figure out what is plotted without asking you. Titles of**graphs**are usually "Y versus X"; so in this case, our title is "Position versus Time." (NOT position divided by time, or position minus time.)**Labels**on the axes must have units!15

## Which type of graph shows changes over time?

Line

**graphs**can also be used to compare**changes over**the same period of**time for**more than one group. Pie charts are best to use when you are trying to compare parts of a whole. They do not**show changes over time**. Bar**graphs**are used to compare things between different groups or to track**changes over time**.16

## What is the origin of the graph?

In two dimensions. On the flat coordinate plane, there are two axes, the vertical y-axis and the horizontal x-axis. The

**origin**is the point where they intersect. This point has the coordinates 0,0 and is usually labelled with the letter O.17

## How do you know if an ordered pair is a solution?

Identify the x-value in the

**ordered pair**and plug it into the equation. When you simplify, if the y-value you get is the same as the y-value in the**ordered pair**, then that**ordered pair**is indeed a solution to the equation. To see this process step-by-step, check out this tutorial!18

## How do u find the point on a graph from an equation?

**Algebra 1 – How to Graph a Linear Equation Using Slope and y**

- Step 1: Put the equation in Slope Intercept Form.
- Step 2: Graph the y-intercept point (the number in the b position) on the y-axis.
- Step 3: From the point plotted on the y-axis, use the slope to find your second point.
- Step 4: Draw your line using the two points you plotted (y-intercept (b) first, slope (m) second.

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## How do you find the Y intercept of two points?

- Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula.
- Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.