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Curated Video
Understanding Linear Functions and Graphs
Learn how to identify a linear function by analyzing its characteristics. Understand that linear functions have a straight line graph and a constant rate of change. The video also covers the slope-intercept form of a linear equation,...
Professor Dave Explains
Plant Responses to the Environment: Tropisms and Defenses
We've already learned a little bit about plant hormones, but let's dig a little deeper so that we can really examine the different ways that plants can respond to stimuli. These are called tropisms, and they can be positive or negative,...
Curated Video
Find Y-Intercept to Interpret Scatter Plots
In this video, students will learn how to interpret scatter plots by finding the Y intercept on the graph. The instructor explains the concept of the Y intercept, its importance in understanding the relationship between variables, and...
Curated Video
Analyzing Scatter Plots: Patterns, Direction, and Strength
This video explains how to create and interpret scatter plots to analyze the relationship between two quantitative variables. It demonstrates how to plot points on a coordinate plane, identify different patterns in scatter plots, and...
Curated Video
Finding the Distance between Two Points on a Coordinate Grid
In this video, the teacher explains how to find the distance between two points on a coordinate grid. The lesson focuses on understanding coordinate grids, ordered pairs, and how to calculate the distance between points on the same axis...
Curated Video
Understanding Function Notation: Graphical and Tabular Interpretation
Explore the concept of function notation as explained through examples and visuals. The video demonstrates how to determine if a relation is a function by analyzing the domain and range. It also shows how to represent functions using...
Why U
Algebra 14 - Scatter Plots
Scatter plots are a powerful method of visualizing relations between sets of numeric values. As an example, trends in a binary relation between the height and weight of a group of people could be graphed and analyzed by using a scatter...
Curated Video
Describing Relations and Functions: Analyzing Visual and Verbal Representations
In this lesson, students will learn how to analyze visual and verbal representations to describe relations and functions. They will explore how two sets of data or variables are related to each other and how to identify the domain and...
Curated Video
Understanding Functions: Why They Matter and How They Apply to You
In this video, we explore the concept of functions and their importance in everyday situations. Using relatable examples like buying candy bars, we learn that a function is a special type of relation where every input has exactly one...
Why U
Algebra 02 - Set Equality and Subsets
Sets can be related to each other in different ways. This chapter describes the set relations of equality, subset, superset, proper subset, and proper superset.
Curated Video
Plotting Points on a Coordinate Plane: Understanding X and Y Axis Coordinates
In this lesson, students will learn how to accurately describe the location of places in a city using a coordinate plane. By moving on the X and Y axes, students can plot points that represent the distance and direction of various...
Curated OER
How is a Function Defined?
A function means that every element of the domain is paired with exactly one element in the range. The teacher illustrates this by using a table for the given set of numbers.
Curated OER
How Do You Write a Relation from a Word Problem?
This word problem has only one set of given numbers. How does one make a graph with only one set of numbers? Make a table to get the other set of values. Now these values make ordered pairs and can be plotted on a graph.
Curated OER
How Do You Figure Out If a Relation is a Function?
If a relation is to be considered a function then the values in the domain can only appear once in the table. It does not matter how many times a value appears in the range. Set up a table using the given values to check and see if the...
Curated OER
What is Rate of Change?
The rate of change is defined as how one quantity changes in relationship to another quantity. The instructor diagrams a graph and demonstrates how to use a formula to calculate the rate of change. It might take two viewings to catch all...
Curated OER
How Do You Write an Equation for Direct Variation from a Table?
y=kx. This is the direct variation equation. You have been given a table of values. So look at the table and figure out how to use this equation to write an equation that represents what is happening in the table. Does the equation...
Curated OER
How is a Function Defined?
A function means that every element of the domain is paired with exactly one element in the range. The teacher illustrates this by using a table for the given set of numbers.
Curated OER
What's the Inverse of a Relation?
The instructor shows how to write the inverse of a relation. In a set of ordered pairs, she takes each pair of coordinates and flips the order, getting the inverse.
Curated OER
How Do You Find the Domain and Range of a Relation?
A straightforward explanation of domain and range. The domain of a set of coordinates are the X-values, and then range are the Y-values of the set.
Curated OER
What's a Function?
There are many ways to represent a function. The main idea though is that for every input there is an output. Watch this video as the instructor illustrates and explains several different ways to show a function. She demonstrates domain...
Curated OER
What is a One-to-One Function?
What is a function? What is a one-to-one function? Using examples of domain and range and looking at different mappings, this video looks at the definition of a function and more specifically, the definition of a one-to-one function.
Curated OER
What is a Relation?
A very short explanation of what makes a relation: a set of ordered pairs.
Curated OER
What is a Relation?
In Algebra 1 the concept of relations is studied. As a starting point to this unit, guide your learners to identify algebraic relations and discriminate the domain and range within an ordered pair though this informative video. Assign...
Khan Academy
Khan Academy: Algebra: Graphical Relations and Functions
Video determing whether the graph of a set of points is a function, which in this case it is not. Includes an overview of what a function is. Describes the vertical line test. [4:07]