**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 the point on the graph?

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.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 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.

2

## 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.

3

## Which is the Y axis on a graph?

Scientists like to say that the “independent” variable goes on the

**x**-**axis**(the bottom,**horizontal**one) and the “dependent” variable goes on the**y**-**axis**(the left side, vertical one).4

## 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 ½.5

## 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**.6

## 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!7

## 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)8

## What is X Y on a graph?

Chances are, we've been graphing points for a long time. This is called a Cartesian coordinate

**graph**. It's made up of two axes ("axes" is just the plural of "axis"): The horizontal axis is called the x-axis. And the vertical one is the y-axis.9

## 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.10

## What does it mean to plot an ordered pair?

When an

**ordered pair**is used to locate a point on a grid, the two numbers are called the 'coordinates' of the point. The 'x' coordinate is the horizontal distance from the origin to the**plotted**point.11

## 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.

12

## What is the special name for the coordinates 0 0 Where the lines intersect?

The center of the coordinate system (where the lines intersect) is called the origin. The axes intersect when both x and y are zero. The coordinates of the origin are (0, 0). An

**ordered pair**contains the coordinates of one**point**in the coordinate system.13

## How do you plot points on a TI 84 Plus?

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).14

## How do you make a graph on Excel?

**To insert a chart:**

- Select the cells you want to chart, including the column titles and row labels. These cells will be the source data for the chart.
- From the Insert tab, click the desired Chart command.
- Choose the desired chart type from the drop-down menu.
- The selected chart will be inserted in the worksheet.

15

## 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.

16

## How do you make an XY graph on Excel?

**Creating an xy scattergraph in Microsoft Excel**

- Select the data and click on the chart wizard button:
- Choose an x-y scatter graph:
- Choose finish:
- Click on a point on the chart to highlight the data points:
- Choose Chart: Add Trendline.
- Choose a linear regression and then click on the Options tab.

17

## How do you make a line graph on Excel?

**Part 1**

**Creating a Line Graph**

- Open Microsoft Excel. Double-click the Excel program icon, which resembles a white "X" on a green folder.
- Click Blank Workbook. It's on the Excel home page.
- Enter your data.
- Select your data.
- Click the Insert tab.
- Click the "Line Graph" icon.
- Select a graph style.
- Click a graph style.

18

## How do you draw a line graph?

**How to Create a Line Graph**

- Create a table. Draw the x- and y-axes on the page.
- Label each axis. If time is one of the factors, it should go along the horizontal (x) axis.
- Add data. Data for a line graph is usually contained in a two-column table corresponding to the x- and y-axes.
- Create a key.

19

## What is a line graph?

It is similar to a scatter plot except that the measurement points are ordered (typically by their x-axis value) and joined with straight

**line**segments. A**line chart**is often used to visualize a trend in data over intervals of time – a time series – thus the**line**is often drawn chronologically.