Aim: How do we write linear equations using two points? Do Now: Get a blue Algebra 1 Textbook. What is the slope and one point on the graph of *Assistance.

Slides:

Advertisements

Similar presentations

2.4 Writing the Equation of a Line

Advertisements

Graph a linear equation Graph: 2x – 3y = -12 Solve for y so the equation looks like y = mx + b - 3y = -2x – 12 Subtract 2x to both sides. y = x + 4 Divide.

Linear Equations Review. Find the slope and y intercept: y + x = -1.

Writing and Graphing Equations of Lines

1/4/2009 Algebra 2 (DM) Chapter 7 Solving Systems of Equations by graphing using slope- intercept method.

Warm Up Find the slope of the line containing each pair of points.

Graphing and Writing Equations in Slope-Intercept Form

Finding the Equation of a Line Critical Thinking Skill: Explicitly assess information and draw conclusions.

Graphing Using Slope - Intercept STEPS : 1. Equation must be in y = mx + b form 2. Plot your y – intercept ( 0, y ) 3. Using your y – intercept as a starting.

Directions: Solve the linear systems of equations by graphing. Use the graph paper from the table. Tell whether you think the problems have one solution,

3.4 Graph of Linear Equations. Objective 1 Use the slope-intercept form of the equation of a line. Slide

Point-Slope Form of a Linear Equation. Point-Slope Form In most textbooks the graphing form for a linear equation is called Point-Slope Form and is the.

Ch. 4 Warm-ups Algebra I. Section 4-1 Warm-up Graph the following equations using either a table or the cover-up method. You choose the best option 1)

LINEAR SYSTEMS – Graphing Method In this module, we will be graphing two linear equations on one coordinate plane and seeing where they intersect. You.

Point-Slope Form 4-7 Warm Up Lesson Presentation Lesson Quiz

Twenty Questions Algebra Review Twenty Questions

Chapter 5:Write the equation of a line Given Two Points.

Algebra 5.5 Point-Slope Form. Point-Slope Form A formula used to find the linear equation when given a point on the line and the slope of the line. Point-Slope.

Chapter 3 Section 4. Objectives 1 Copyright © 2012, 2008, 2004 Pearson Education, Inc. Writing and Graphing Equations of Lines Use the slope-intercept.

6.4 Point-Slope Form and Writing Linear Equations Point-Slope Form of a Linear Equation –The point-slope form of the equation of a non- vertical line that.

Point-Slope Form 4-7 Warm Up Lesson Presentation Lesson Quiz

Equations of Lines LF.2.AC.7: Write an equation given two points, a point and y-intercept, a point and slope.

Section P.2 – Linear Models and Rates of Change. Slope Formula The slope of the line through the points (x 1, y 1 ) and (x 2, y 2 ) is given by:

The temperature of the human body would be 37°C °C.

Finding Linear Equations Section 1.5. Lehmann, Intermediate Algebra, 4ed Section 1.5Slide 2 Using Slope and a Point to Find an Equation of a Line Find.

Holt McDougal Algebra Slope-Intercept Form Warm Up Find each y-intercept. 1. y = 3x x – 3y = 12 Find each slope x + 2y = x.

Aim: What is the equation of a line? Do Now: Find the slope of the line 8x + 5y = 20 This is the slope – intercept form y = mx + b HW: Handout.

5.3 Write Linear Equations in Point-Slope Form Big Idea: -Verify that a point lies on a line, given an equation of a line. -Derive linear equations by.

Write Linear Equations in Point- Slope Form Section 4.3 beginning on page 242.

Systems by Graphing By: Natalie Dohmeyer and Melis Uzkan.

Point-Slope Form Linear Equations in Two Variables.

Holt McDougal Algebra Point-Slope Form Graph a line and write a linear equation using point-slope form. Write a linear equation given two points.

Point Slope Form Algebra 1 Honors Objective: To be able to graph and write a linear equation in point slope Warm-Up 1. Check homework from.

 Slope-Intercept Form:  y = mx + b  where m is the slope and b is the y-intercept.  How do you know you have b? Either you will see b = ??, or you.

Writing Linear Equations in Slope Intercept Form Goals: Write linear equations given 2 points. Decide which form of a line to use given initial information.

Using Slopes and Intercepts

STANDARD EQUATION OF A LINE: Ax + By = C

Converting between Standard form and Slope-Intercept form

F-IF.C.7a: Graphing a Line using Slope-Intercept, Part 2

Module 1 Review ( ) Rewrite the following equations in slope-intercept form (solve for y), then graph on the coordinate plane.

King/Halling Algebra Slope Between 2 Points King/Halling Algebra

Solve an equation with two real solutions

Slope-Intercept Form 4-6 Warm Up Lesson Presentation Lesson Quiz

2.4 Writing the Equation of a Line

Objectives Graph a line and write a linear equation using point-slope form. Write a linear equation given two points.

5-4 Point Slope Form.

Name the slope and y-intercept

2.4 Writing the Equation of a Line

8/29/12 Writing the Equation of a Line

Point-Slope Form 4-7 Warm Up Lesson Presentation Lesson Quiz

Solving Systems Check Point Quiz Corrections

Meaning of Slope for Equations, Graphs, and Tables

Slope-Intercept Form 4-6 Warm Up Lesson Presentation Lesson Quiz

Forms of a linear equation

5.7 – Writing equations from 2 points

5.6 – point slope formula Textbook pg. 315 Objective:

Example 1A: Graphing by Using Slope and y-intercept

Write the equation for the following slope and y-intercept:

Graphing and Writing Equations in Standard Form

5.5 – Graphing slope intercept

2-4: Writing Linear Equations Using Slope Intercept Form

Point-Slope Form 4-7 Warm Up Lesson Presentation Lesson Quiz

Solve Systems of Equations by Graphing

Write an Equation Given Two Points

Module 11-3 Objectives Graph a line and write a linear equation using point-slope form. Write a linear equation given two points.

Bellwork Can you name some types of companies that might use linear graphs to assist with their companies success?

Objectives: To graph lines using the slope-intercept equation

2.4 Writing the Equation of a Line

Unit 5: Linear Functions & Slope Intercept

ALGEBRA I - REVIEW FOR TEST 2-1

Presentation transcript:

Aim: How do we write linear equations using two points? Do Now: Get a blue Algebra 1 Textbook. What is the slope and one point on the graph of *Assistance with the Do Now question can be found on p. 315 Date: Thursday, March 20, 2014

Why does Point Slope form work? Review Literal Equations - Solve for m Point Slope Form Divide both sides by (x-x 1 ) Slope Formula

Using Two Points to Write an Equation Textbook p. 317 Problem 3 What is the equation of the line at the right? Start with slope formula Use the given points to find the slope Use point-slope form Use either the given point for (x 1, y 1 ). For example you can use (1, 4)

Practice p. 318 # Write an equation in point-slope form for each line.

16. Write an equation in point-slope form for each line.

17. Write an equation in point-slope form for each line.

18. Write an equation in point-slope form for each line.

Graphing Using Point-Slope Form 1. Identify the slope and one point 2. Use slope to plot additional points 3. Sketch the graph y + 3 = 2(x -1)y + 5 = -(x + 2) **What is necessary for a good sketch?

Summary How can rewriting the equation in slope- intercept form be used as a check for the equation you wrote in point slope form?