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1,197 resources with the concept linear equations

3:48
Lesson Planet

Parallel Lines

For Students 7th - 9th
Here is fairly basic video that takes three equations, each written in slope-intercept form, with the goal of determining whether the lines are parallel.  Sal graphs each of the equations on the same coordinate plane to show how their...
7:57
Lesson Planet

Point-Slope and Standard Form

For Students 7th - 9th
Given two points on a line, this video shows how to write the linear equation in point-slope form, slope-intercept form, and standard form. First, Sal reviews each of these forms, then calculates the slope, writes the equation in...
3:02
Lesson Planet

Graphing a Line in Slope Intercept Form

For Students 7th - 9th
In this short video, Sal shows how to graph a line in slope-intercept form.
5:07
Lesson Planet

Converting to slope-intercept form

For Students 7th - 9th
This video shows how to graph a linear equation in standard form. He shows three different examples where he changes each equation into slope-intercept form and graphs it. One of the examples is a line with a negative slope, one is a...
7:38
Lesson Planet

Algebra: Linear Equations 4

For Students 7th - 11th
This is a lesson in solving linear equations. More specifically, students will see how to solve an equation with a variable expression in the denominator of a fraction.
6:45
Lesson Planet

Algebra: Equation of a Line

For Students 6th - 9th
Given two points on a line, find the value for slope using the rise over run formula. Then find the y-intercept by plugging one of the point values into the equation of a line. Finally, put these values into the equation of a line y =...
3:03
Lesson Planet

Parallel Lines 2

For Students 7th - 9th
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.
8:08
Lesson Planet

Equation of a Tangent Line

For Students 11th - Higher Ed
Using a specific example, Sal shows how to find the equation of a tangent line to a given function at a specific point. Specifically, he solves the problem of finding the tangent line to the function f(x) = xex at x = 1. This problem...
Lesson Planet

Diapers

For Students 6th - 9th Standards
Most of your students probably think a car or college is the first big expense their parents could help them with, but as it turns out these kids have been costing their parents for their whole lives. Have they ever considered how much...
1 In 1 Collection
Lesson Planet

Going to the Game (systems)

For Students 7th - 9th Standards
Seven real-life math problems require the solving of simultaneous pairs of linear equations. Although a similar approach is taken for most of the problems, the topic of sports stadium concessions should keep the interest level high. As a...
1 In 1 Collection
Lesson Planet

Solving Linear Equations in One Variable

For Teachers 7th - 9th Standards
A thorough and professional appearance characterizes a instructional activity on linear equations. Maturing mathematicians are taught to identify and exemplify linear equations with a single variable. They also classify equations...
13:10
Lesson Planet

Graphs of Linear Equations

For Students 7th - 11th
Sal is plotting away in this video - but don't worry, it's nothing suspicious. He introduces linear equations, taking viewers through a few simple examples before applying the knowledge to word problems that are more complicated.
11:11
Lesson Planet

Constructing Equations in Slope-Intercept Form from Graphs

For Students 7th - 11th
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.
8:07
Lesson Planet

Linear Equations in Standard Form

For Students 7th - 11th
Illuminate the world of mathematics for your class - specifically, the process of linear equations. In this video, Sal teaches about linear equations in standard form after two videos on slope-intercept and slope-point forms. He defines...
8:39
Lesson Planet

SAT Prep: Test 2 Section 3 Part 1

For Students 9th - 12th
Page 459 of The Official SAT Study Guide by The College Board features another set of practice SAT math problems, beginning with problems 1-4. Sal demonstrates how to solve problems with factoring and visualization.
9:54
Lesson Planet

SAT Prep: Test 1 Section 9 Part 3

For Students 9th - 12th
If it takes a long time to complete the problems on the math SAT, it doesn't matter if they are correct - the problems that are left over will count against the student's score. Sal takes care to show quicker ways to complete problems...
9:50
Lesson Planet

SAT Prep: Test 1 Section 9 Part 2

For Students 9th - 12th
On problems 5-8 of the practice SAT video series (page 424 of The Official SAT Study Guide), Sal demonstrates several different ways to solve each problem in an efficient and timely manner. Students will appreciate the ways he details...
9:48
Lesson Planet

SAT Prep: Test 3 Section 8 Part 1

For Students 9th - 12th
Section 8 of the practice tests from The Official SAT Study Guide begins with problems about sets of integers, linear equations with radicals, and geometric angles, among others. Sal solves each problem in quick succession, demonstrating...
9:45
Lesson Planet

SAT Prep: Test 3 Section 4 Part 4

For Students 9th - 12th
Adding the values of angles, deciphering fraction word problems, and solving complex linear equations are all in a day's work for Sal, who will stop at nothing to help your students pass the SAT. His clear annotations and strong...
9:40
Lesson Planet

SAT Prep: Test 1 Section 9 Part 1

For Students 9th - 12th
With a brand new review session, Sal addresses common skills required to take - and pass - the SAT. He uses problems 1-4 on page 423 of The Official SAT Study Guide to demonstrate solving problems with linear equations, ratios, and...
6:07
Lesson Planet

Linear Equations in Point Slope Form

For Students 7th - 11th
Bridging the knowledge gap between slope-intercept form and point-slope form, Sal explains that the forms are "just two different ways of writing the same equation." This piece of information will be useful to those who have a difficult...
9:37
Lesson Planet

SAT Prep: Test 3 Section 4 Part 1

For Students 9th - 12th
Modeling quick thinking and efficient problem solving, Sal works through the linear equation in problem 1 in just over 30 seconds. This video, which covers problems 1-5 on page 530 of The Official SAT Study Guide, also shows students how...
9:28
Lesson Planet

SAT Prep: Test 6 Section 7 Part 2

For Students 9th - 12th
Helping students realize the common missteps in solving the average SAT problem, Sal creates a lens through which students can clearly see the correct and incorrect approach to each type of problem. He points out what a student might...
9:19
Lesson Planet

SAT Prep: Test 2 Section 6 Part 3

For Students 9th - 12th
Sal's dedication is clear in this video, which takes place on Thanksgiving Day. The problems focus on algebra (averages and linear equations) and geometry (perimeters and angles). Viewers beware: Sal makes a self-professed error on...