Graphing Linear Equations

Slides:



Advertisements
Similar presentations
Objective - To graph linear equations using the slope and y-intercept.
Advertisements

2.4 Writing the Equation of a Line
The table and graph suggest another method of graphing a linear equation. This method is based on two numbers. The SLOPE This is the coefficient of x.
2.2 Linear Equations.
Linear Equations Review. Find the slope and y intercept: y + x = -1.
Objective The student will be able to:
Quick Graphs Using Slope-Intercept Form
Objective The student will be able to: graph a line given any linear equation. SOL: A.6 Designed by Skip Tyler, Varina High School.
WARM UP Evaluate 1.3x + y for x = 4 and y = 3 2.x² + 7 for x = 7 5 Minutes Remain.
December 7, 2012 Slope Intercept Form Warm-up: Find the slope of the line that goes through (3, -2) and (4, 7). Quiz Tuesday! HW 5.3: Pg. 275 #20-5,
Analyzing Data using Line Graphs Slope & Equation of a Line.
LEARNING TARGETS: 1. TO IDENTIFY SLOPE FROM A TABLE OF VALUES. 2. TO IDENTIFY SLOPE FROM A GRAPH. 3. TO IDENTIFY SLOPE FROM 2 POINTS. 4. TO IDENTIFY SLOPE.
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.
When an equation is in slope-intercept form: Examples: Identify the slope of the line and the y- intercept for each equation. 1. y = 3x y = ½.
Linear Equations Objectives: -Find slope of a line - Write 3 different forms of linear equations Mr. Kohls.
Graphing Lines Using Slope Intercept Form Goal: Graph lines in slope intercept form.
Objective The student will be able to: graph a line given any linear equation. SOL: A.6 Designed by Skip Tyler, Varina High School.
Warm up 1.Find the slope of a line that passes through these points: a.B(2,5) C(3,1)b. L (4,3) M (-2, -6) 2.Write each equation in its simplest form: a.
Point-Slope Form Linear Equations in Two Variables.
Writing Equations from Tables
Graphing and Writing Equations of Lines (2-4)
Chapter 1 Linear Equations and Linear Functions.
Slope-Intercept and Standard Form of a Linear Equation.
Review of Slope Intercept Form
STANDARD FORM OF A LINEAR EQUATION
Linear Equations Objectives: Find slope of a line
Objective The student will be able to:
2.4 Writing the Equation of a Line
Writing Equations in Point-Slope Form
Quick Graphs Using Slope-Intercept Form
Objective The student will be able to:
Identifying Graphs of Linear Equations
2.4 Linear Functions: Graphs and Slope
PARENT GRAPH FOR LINEAR EQUATIONS
Warm Up.
Graphing Linear Equations
Objective The student will be able to:
Objective The student will be able to:
Writing Equations in Slope-Intercept Form
Lesson 8-3 Using Slopes and Intercepts part 2
2.4 Writing the Equation of a Line
8/29/12 Writing the Equation of a Line
2.5 Linear Equations.
Quick Graphs of Linear Equations
Objective The student will be able to:
Section 2-4: Writing Linear Equations
We have used 3 different methods for graphing equations.
Objective The student will be able to:
Objective The student will be able to:
Writing Linear Equations Given Two Points
Forms of a linear equation
Write the equation for the following slope and y-intercept:
Quick Graphs Using Slope-Intercept Form
Lesson 4.4 Objective: To graph a line on a coordinate plane only using the slope and the y-intercept. Essential Question: How can I graph an equation without.
Graphing Linear Equations
2-4: Writing Linear Equations Using Slope Intercept Form
Graphing Linear Equations
Review Graphing Linear Equations
2.2: Graphing a linear equation
4-1 Slope Intercept Form Goal:
Find the y-intercept and slope
Graphing Functions x f(x) = 2x (2) + 7 = (3) + 7 = 13 4
Writing Linear Equations from Graphs
2.4 Writing the Equation of a Line
Students will be able to graph equations of lines.
1: Slope from Equations Y = 8x – 4 B) y = 6 – 7x
Section 2-4: Writing Linear Equations
Graphing using Slope-Intercept Form
Graphing Linear Equations
Presentation transcript:

Graphing Linear Equations

We have used 3 different methods for graphing equations. 1) using a t-table 2) using slope-intercept form 3) using x- and y-intercepts The goal is to determine which method is the easiest to use for each problem!

Here’s your cheat sheet! If the equation is in STANDARD FORM (Ax + By = C), graph using the intercepts. If the equation is in SLOPE-INTERCEPT FORM (y = mx + b), graph using slope and intercept or a t-table (whichever is easier for you). If the equation is in neither form, rewrite the equation in the form you like the best!

Graph Which graphing method is easiest? Using slope and y-intercept (or t-table)! These notes will graph using m and b m = , b = 2

Review: Graphing with slope-intercept Start by graphing the y-intercept (b = 2). From the y-intercept, apply “rise over run” using your slope. rise = 1, run = -3 Repeat this again from your new point. Draw a line through your points. -3 1 -3 1 Start here

Graph -2x + 3y = 12 Which graphing method is easiest? Using x- and y-intercepts! (The equation is in standard form) Remember, plug in 0 to find the intercepts.

Review: Graphing with intercepts: -2x + 3y = 12 Find your x-intercept: Let y = 0 -2x + 3(0) = 12 x = -6; (-6, 0) Find your y-intercept: Let x = 0 -2(0) + 3y = 12 y = 4; (0, 4) 3. Graph both points and draw a line through them.

Which method is easiest to graph -3x + 6y = 2? T-table Slope and intercept X- and Y-intercepts Graphing calculator

Which is the graph of y = x + 2? .

Thanks for coming!