3-4 Equations of Lines Forms of Equations

Slides:

Advertisements

Similar presentations

Copy in Agenda and add to TOC: –#5 Finding Slope and Y-intercept Given Slope Intercept Form.

Advertisements

Parallel & Perpendicular Slopes II

2.4 Write Equations of Lines

Write an equation given the slope and a point

Parallel and Perpendicular Lines

4.4 – Parallel & Perpendicular Lines. Parallel Lines.

Parallel & Perpendicular Lines Parallel Lines m = 2/1 What is the slope of the 2 nd line?

Writing equations of parallel and perpendicular lines.

Questions from 1.5 HW???.

Writing equations in slope intercept form

Writing Linear Equation using slope-intercept form.

Goal: Write a linear equation..  1. Given the equation of the line 2x – 5y = 15, solve the equation for y and identify the slope of the line.  2. What.

WRITE EQUATIONS OF PARALLEL AND PERPENDICULAR LINES November 20, 2008 Pages

2.4 Essential Questions What is the point-slope form?

Notes Over 2.1 Graphing a Linear Equation Graph the equation.

Point slope form of an equation Y - y₁ = m(X- x₁) (x₁, y₁) An ordered pair on the line m slope.

. 5.1 write linear equation in slope intercept form..5.2 use linear equations in slope –intercept form..5.3 write linear equation in point slope form..5.4.

Point slope form of an equation Y - y₁ = m(X- x₁) (x₁, y₁) An ordered pair on the line m slope.

Point Slope Form. Write the equation of the line with slope 3 and passing through the point (1, 5). y – y 1 = m(x – x 1 )

4.3 – Writing Equations in Point Slope Form. Ex. 1 Write the point-slope form of an equation for a line that passes through (-1,5) with slope -3.

Chapter 2 – Linear Equations and Functions 2.5 – Writing Equations of Lines.

Parallel and Perpendicular Lines. 1. Fill in the chart with the missing slopes. (similar to p.234 #22) Slope of the Given Line Slope of a Line Parallel.

SATMathVideos.Net If Line A passed through points (1,1) and (3,2). And Line B (not shown) is perpendicular to Line A. Which equation represents Line B?

Parallel and Perpendicular. 1. What is the slope of y = 3? a. 3 b. 0 c. Undefined d

WRITE THE EQUATION OF THE LINE THROUGH THE GIVEN POINTPER PARALLEL TO THE GIVEN LINE.

1. Write the equation in standard form.

Warm up Tell whether the relation is a function. {(-1, 5), (-3, 2), (2, 0), (1, 2)} Evaluate: f(x) = 2x2 – 4 when x = -3 Find the slope: (5,

Lesson 5.6 Point-Slope Form of the Equation of a Line

Graphing Lines Using Slope-Intercept Form

Writing Equations of a Line

Slope Intercept form. Geometry Unit 2-3, 2-4 Equations of lines Parallel and perpendicular slopes.

Parallel and Perpendicular Lines

Writing Equations of Lines

Warm Up Find each y-intercept. 1. y = 3x x – 3y = 12

Lesson 3-6 Part 2 Point-Slope Equation.

Do – Now Just do – don’t copy word problem.

Writing Equations of a Line

Precalculus Section 1.2 Find and apply the slope of a line

2-4B Writing equations for Parallel & Perpendicular lines

Chapter 1: Lesson 1.3 Slope-Intercept Form of a Line

Objective The student will be able to:

3-3: Slopes of Lines.

Lines in the Plane Property of Texas Tech University

3-4 Equations of Lines Name the slope and y-intercept of each equation. 1. y = ½ x + 4 m = ½ b = 4 2. y = 2 m = 0, b = 2 (horizontal line) 3. x = 5.

Writing Equations of Lines

Writing Linear Equations Given Two Points

Parallel and Perpendicular Lines

3.5 Write and Graph Equations of Lines

2.5 Linear Equations.

Section 1.2 Straight Lines.

Writing the Equation of a Line from a Graph

Forms of Equations Intercepts Parallel & Perpendicular Linear Graphs

Writing the Equation of a Line

The Point-Slope Form of the Equation of a Line

4.5 The Point-Slope Form of an Equation of a Line

Write the equation of the line.

Parallel and Perpendicular

Warm up Tell whether the relation is a function.

Slope-Point Form of the Equation for a Linear Function

8-6 Slope-Intercept Form

Warm up Tell whether the relation is a function.

Writing Equations of a Line

Slope-intercept Form of Equations of Straight Lines

Writing Equations of Lines

Writing Linear Equations

Warm Up x – 5 = 0 Write the Standard Form equation of

ALGEBRA I - REVIEW FOR TEST 2-1

WARM UP Find the equation of the line that passes through (3, 4), (6,8)? Find the slope of the line that passes through (-4,-8), (12,16)? Find the equation.

Chapter 4 Review.

3.5 Write and Graph Equations of Lines

Presentation transcript:

3-4 Equations of Lines Forms of Equations Slope-Intercept Form: y = mx + b Point-Slope Form: y – y1 = m(x – x1) m means slope b means y intercept

Special types of lines If the slope is 0 the equation is written as y = b (i.e. y = 6) If the slope is undefined the equation is written as x = x-intercept (i.e. x = 2)

Slope Intercept Form Ex 1: Write the equation of a line in slope intercept form given: m = 3 and b = 2 Ex 2: Write the equation of a line in slope intercept form given: m =2 and passes through (-2, -5) Ex 3: Write the equation of a line in slope intercept form given points: A (0,3) and B (-2, -1)

Parallel and Perpendicular Lines Ex 4: Write the equation of the line passing through (-7, -4) parallel to y = ½ x + 9 Ex 5: Write the equation of the line passing through (-2, 2) perpendicular to y = 5x - 8

Classwork/Homework P. 202-203 2-32 even