Algebra 1 Online! Henrico County Public Schools, Virginia
Module - Linear Equations
Lesson 4 - Slope-Intercept Form
 Lessons 1- Slope 2- Point-Slope and Standard Form 3- X- and Y-intercepts 4- Slope-Intercept Form 5- Graphing Linear Equations 6- Graphing Linear Inequalities 7- Module Review
SOL

A.6b - The student will graph linear equations and linear inequalities in two variables, including writing the equation of a line when given the graph of the line, two points on the line, or the slope and a point on the line.

## Slope-Intercept Form

Observe what happens as you move the two sliders.

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## Graphing Lines using Slope-Intercept Form

Use the points to graph the line given in slope-intercept form. (Hint: Use one point for your y-intercept and the other for slope)

CORRECT! NICE WORK! Will appear once the equation is graphed correctly.

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## Writing Equations of Lines Practice Slope-Intercept Form

Drag points A and B around.

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Common Core Standards
 8.F.3 8.F.4 A-CED.2 F-BF.3 F-LE.2
Warm-up
Lessons
Videos
Explore Learning
1. Slope-Intercept Form of a Line - Activity B: Compare the slope-intercept form of a linear equation to its graph. Vary the coefficients and explore how the graph changes in response.
Geogebra

Internet Sites
1. Interactive Notes: Graphing Linear Equations - lessons and practice problems at Regentsprep.org
2. Notes: Graphing Using Slope and Y-intercept - notes on graphing using slope and y-intercept at Purplemath.com
3. Notes: Writing Equations of Lines - notes on finding the slope at Purplemath.com
4. Interactive Notes: Writing Equations of Lines - lessons and practice problems at Regentsprep.org
5. Interactive: Slope Slider - manipulate a linear function in the form of f(x) = mx + b at Shodor.org.
6. Interactive: Exploring Slope-Intercept Form - mathlet from GeoGebra

Homework
1. Slope and Y-intercept Worksheet (doc)
2. Finding Slope and Intercepts (doc) | (pdf)
3. Finding Equations from Graphs (doc) | (pdf)
4. Project Graduation Quotable Puzzle (doc) | (pdf)
5. Exploration: Slope and Intercept (doc) | (pdf)
6. Glencoe PWS (pdf)
7. Glencoe SG (pdf)
Journal
1. Slope & Intercept: What is the significance of the slope of a line? Y-Intercept?
2. Slope-Intercept Form: Think of the equations for the lines as being in the form y = mx + b. What effect do the m and the b have upon the graph of the line? How could you graph the line y = -2x + 4 without plotting points?
Study Guide
Other
 HCPS 2002-