Khan Academy
Parallel Lines From Equation, Mathematics I, High School Math
Here is a fairly basic video that uses three equations, each written in slope-intercept form, to determine whether the lines are parallel. Sal graphs each equation on the same coordinate plane to show how their slopes compare. The video...
Khan Academy
Writing Equations in All Forms, Algebra I
Given two points on a line, this video shows how to write the linear equation in point-slope, slope-intercept, and standard forms. First, Sal reviews each of these forms, then calculates the slope, writes the equation in point-slope...
Khan Academy
Graphing a Line in Slope Intercept Form
In this short video, Sal shows how to graph a line in slope-intercept form.
Khan Academy
Converting to Slope-Intercept Form
This video shows how to graph a linear equation in standard form. He shows three examples of changing each equation into slope-intercept form and graphing it. One example is a line with a negative slope, one is a vertical line, and the...
Khan Academy
Parallel Lines from Equation (Example 2), Mathematics I
Can you tell, algebraically, if three lines are parallel? In this video, Sal demonstrates how to rewrite linear equations in slope-intercept form and compare the slope of each line.
Khan Academy
Slope-Intercept Equation From a Graph Examples, Algebra I
This lecture continues reviewing linear equations and slope problems with several example problems. Those who didn't grasp the concepts during class might find this lesson helpful.
Curated OER
How Do You Find the Slope of a Line If You Have a Perpendicular Line?
What kind of lines have slopes that are the opposite reciprocal of each other? Parallel lines? No. Parabolas? No. Perpendicular lines? Yes! Watch and listen as the instructor demonstrates how to make these determinations about...
Curated OER
How Do You Use Point-Slope Form to Write an Equation from a Table?
Given a table of x and y values, is it possible to write a linear equation from this information? There will be several steps involved. First is to use the point-slope formula to find a slope. Then use that slope and one of the ordered...
Curated OER
How Do You Solve a System of Inequalities by Graphing?
You've got a linear system of inequalities? You need to solve it by graphing? No sweat. Make sure that each equation is in slope-intercept form and then graph each equation. Is it a solid line or a dashed line? Which side of the line...
Curated OER
How Do You Check if a Point is on a Line If You Have an Equation?
Can it be determined if a given point satisfies the equation and is thus a point on the line of the graph? So given a coordinate point, plug the values into the equation and solve. If the solution is true, then the given point lies on...
Curated OER
How Do You Check if a Point is on a Line If You Have a Graph?
The instructor demonstrates graphically how to verify that a given point lies on the line of a given equation. She graphs a line in slope-intercept form, and then plots the point to verify if it is in fact, on the graph of the line.
Curated OER
How Do You Find the Y-Intercept of a Line If You Have Another Point and the Slope?
Looking to teach your class how to find the y-intercept of a line using another point and the slope? Consider this video as an instructional tool. Learners can watch as a lecturer demonstrates how to find the y-intercept, using the...
Curated OER
How Do You Write an Equation of a Line in Slope-Intercept Form If You Have a Table?
There are many pieces and many parts to this problem. It seems simple enough to write an equation in slope-intercept form. In this problem, there is a given table of values and information from this table is used to get an equation...
Curated OER
How Do You Write an Equation of a Line in Slope-Intercept Form If You Have the Slope and the Y-Intercept?
If you are given the value for slope (m), and the value for the intercept (b), all you need to do is remember what the slope-intercept form looks like. Y=mx+b. Then you just have to plug the given values into the slope-intercept line of...
Curated OER
What's Slope-Intercept Form of a Linear Equation?
A clear introduction to slope-intercept form, this would be helpful for learners who are struggling with this concept. You might also provide this instructional video for class members to use as they work on homework or class work. A...
Curated OER
How Do You Write an Equation of a Line in Slope-Intercept Form If You Have One Point and a Perpendicular Line?
This problem has many steps involved. Finding equations and rearranging equations. Finding slope and getting the opposite reciprocal of a slope. Finding intercepts. There's a lot to do to solve this problem. It's not so difficult, it...
Curated OER
How Do You Find the Y-Intercept of a Line If You Have Another Point and the Slope?
Looking to teach your class how to find the y-intercept of a line using another point and the slope? Consider this video as an instructional tool. Learners can watch as a lecturer demonstrates how to find the y-intercept, using the...
Curated OER
What's Slope-Intercept Form of a Linear Equation?
A clear introduction to slope-intercept form, this would be helpful for learners who are struggling with this concept. You might also provide this instructional video for class members to use as they work on homework or class work. A...
Curated OER
How Do You Write an Equation of a Line in Slope-Intercept Form If You Have the Slope and the Y-Intercept?
If you are given the value for slope (m), and the value for the intercept (b), all you need to do is remember what the slope-intercept form looks like. Y=mx+b. Then you just have to plug the given values into the slope-intercept line of...
Curated OER
How Do You Solve a System of Inequalities by Graphing?
You've got a linear system of inequalities? You need to solve it by graphing? No sweat. Make sure that each equation is in slope-intercept form and then graph each equation. Is it a solid line or a dashed line? Which side of the line...
Curated OER
How Do You Check if a Point is on a Line If You Have a Graph?
The instructor demonstrates how to verify that a given point does or does not lie on the line of a given equation. She draws a graph (the axis lines need arrow ends) and plots the given linear equation. She then plots the coordinate...
Curated OER
How Do You Write the Equation of a Line in Slope-Intercept Form from a Word Problem?
There will be two variables in this equation since a straight line means a linear equation. Writing the equation in slope-intercept form means there is an x-value and a y-value. So let's watch this video and see what it takes to use the...
Curated OER
How Do You Graph a System of Equations With No Solution?
Two equations. What's the solution to this system? How can you solve it? Can you write the two equations in slope-intercept form? Yes, you can. Now graph each equation. Look, the lines are parallel. What does that mean? That means there...
Curated OER
How Do You Write and Use a Prediction Equation?
Goodness! There are a lot of steps in getting to the final solution in this word problem. Watch this video and follow along as the instructor explains each and every step. There's a scatter plot, a line of fit, writing an equation based...