slope-intercept-form-mathhelpcom-algebra-help

For a complete lesson on slope-intercept form, go to http://www.MathHelp.com - 1000+ online math lessons with your own personal math teacher!

In this lesson, students learn to use slope-intercept form to graph a line. Slope-intercept form is y = mx + b form, where m represents the slope, and b represents the y-intercept. So if the equation of a line is y = 3/4 x - 2, then the line is written in slope intercept form, or y = mx + b form, with m = 3/4 and b = -2. To graph the line, start with the y-intercept, or b, of -2. From there, take the slope, or m, of 3/4, plot a second point, and graph the line.

To graph a line using slope intercept form that has an equation like y = -3x, change it to y = -3x + 0 so that it matches up with y = mx + b form. Its slope, therefore, is -3 (which can be thought of as -3/1), and its y-intercept is 0.

To graph a line using slope intercept form that has an equation like y = 4, think of it as y = 0x + 4. Its slope, therefore, is 0, and its y-intercept is 4, so its graph is a horizontal line up 4 units on the y-axis.

Slope intercept form makes it easy to graph a line quickly, without have to set up a chart and plug in values for x.

Tagged under: Slope,Intercept,Form,Graph,Line,slope,intercept,formula,equations,equation,graphing,lines,linear,math,

Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.

Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip

Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans

1. Students enter a simple code

2. You play the video

3. The students comment

4. You review and reflect

* Whiteboard required for teacher-paced activities

With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.

Quickfire

Carry out a quickfire formative assessment to see what the whole class is thinking

Discuss

Create interactive presentations to spark creativity in class

Team Up

Student teams can create and share collaborative presentations from linked devices

Clip

Turn any public video into a live chat with questions and quizzes

Tried out the canvas response option on @SpiralEducation & it's so awesome! Add text or drawings AND annotate an image! #R10tech

Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.

Absolutely amazing collaboration from year 10 today. 100% engagement and constant smiles from all #lovetsla #spiral

Students show better Interpersonal Writing skills than Speaking via @SpiralEducation Great #data #langchat folks!

Dr Ayla Göl
@iladylayla

A good tool for supporting active #learning.

The Team Up app is unlike anything I have ever seen. You left NOTHING out! So impressed!