10 Questions
What is the purpose of the X-axis in a graph?
To represent the independent variable of a data set
What do the X and Y axes intersect at?
The origin of the graph
What is the value that goes in the direction of the X-axis?
The value of X in an ordered pair
What is the axis graph composed of?
One horizontal line and one vertical line
What is required to plot a point on a graph?
Both the values of X and Y
What does the Y-axis represent in a graph?
The vertical line that represents the second number in an ordered pair (X,Y) for a data point
What is the difference between a linear and polynomial axis chart?
A linear axis chart shows changes in data that create a straight line, while a polynomial axis chart shows changes that create a curvature
How do you find the range of a graph?
By finding the difference between the highest and lowest values on the Y-axis
What is the domain of a graph?
The difference between the highest and lowest values for data on the X-axis
What is the order of plotting an ordered pair (X,Y) on a graph?
Move in the horizontal direction to the value of X, then move in the vertical direction to the value of Y
Study Notes
Graph Terminology
- A graph consists of perpendicularly intersecting lines called axes.
- The range of the scale represents all the numbers encompassed on the graph.
- The scale of the graph represents the value of each tic mark present on the graph.
Axis on a Graph
- The axis graph is the basic layout for the graph and contains all data plotted on the graph.
- The axis graph shows the intersection of two real number lines: one horizontal (X-axis) and one vertical (Y-axis).
- The X-axis is the independent variable of the data set, while the Y-axis is the dependent variable of the same data set.
X and Y Axes
- The X-axis is the horizontal line, and the Y-axis is the vertical line.
- The X and Y axes are normally defined as ordered pairs in data sets, denoted as (X,Y).
- A point on a graph is listed as an ordered pair (X,Y).
X-Axis
- The X-axis is the horizontal line that represents the first number in an ordered pair (X,Y) for a data point on a graph.
- The value of X in an ordered pair goes in the direction of the X line (horizontal).
Y-Axis
- The Y-axis is the vertical line that represents the second number in an ordered pair (X,Y) for a data point on a graph.
- The value of Y in an ordered pair goes in the direction of the Y line (vertical).
Axis Charts
- Graphs can be either linear or polynomial axis charts.
- Linear axis charts show changes in data that create a straight line, where a change in X produces the same change in Y.
- Polynomial axis charts show changes that vary, where a change in X does not produce an equal value of Y.
Plotting Data Points
- To create a data point, take the value of X, move in a horizontal direction towards that number, and then move from the value of X to the value of Y in a vertical direction.
- The value of X goes first, and the value of Y is second.
Range of a Graph
- The range of a graph is the difference between the highest and lowest values of Y in the vertical direction.
- The range is found by moving vertically, up and down to find the difference between the highest and lowest values of Y.
Domain of a Graph
- The domain of a graph is the difference between the highest and lowest values of X in the horizontal direction.
- The domain is found by moving horizontally, left and right to find the difference between the highest and lowest values of X.
Learn about the basics of graph terminology, including axes, scales, and coordinates. Understand how to read and interpret graphs with this introductory quiz.
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