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4.4 Parallel and Perpendicular LinesObjective:Write an equation of the line that passes through a given point parallel or perpendicular to a given line
What do we Already Know? Write Equations in Slope-Intercept FormWrite Equations in Point-Slope Form Find the Slope of a Line
What we will Know? How to write an equation of a line that passes through a given point parallel or perpendicular to a given line.
PARALLEL LINES Do not intersect in the same plane Have the same slope
Write an equation in slope-intercept form for the line that passes through (-3,5) and is parallel to the graph of y=2x-4
Write an equation in slope-intercept form for the line that passes through (4,-1) and is parallel to the graph of y=(1/4)x+7
Write an equation in slope-intercept form for the line that passes through (0,3) and is parallel to the graph of y= -4x+5
Perpendicular Lines Lines that intersect and form right anglesSlopes are opposite reciprocals Ex. m= 4 then the slope of the line that is perpendicular to m= 4 is –1 4
Write an equation in slope-intercept form for the line that passes through (-4,6) and is perpendicular to the graph of 2x+3y=12
Write an equation in slope-intercept form for the line that passes through (4,7) and is perpendicular to the graph of y=2x-1 3
Write an equation in slope-intercept form for the line that passes through (2,3) and is perpendicular to 2x+3y=4
Journal Page 242 #45 Is a horizontal line perpendicular to a vertical line sometimes, always, or never? Explain your reasoning
Determine by graphing whether y=5, x=3 and y=-2x+1 are parallel or perpendicular
Parallel and Perpendicular Lines
4-7B Perpendicular Lines Algebra 1 Glencoe McGraw-HillLinda Stamper.
7.8 Parallel and Perpendicular Lines Standard 8.0: Understand the concepts of parallel and perpendicular lines and how their slopes are related.
Lesson 6.5 Parallel and Perpendicular Lines
Unit 1 Basics of Geometry Linear Functions.
Warm-Up On the same coordinate plane… ▫Graph the equation y=2x +3 ▫Graph the equation y=2x ▫Graph the equation y= - ½x + 1 What do you notice about the.
5.7 Parallel and Perpendicular Lines
Bellwork Partner Activity for graphing.
Parallel Lines Lines are parallel if they have the same slope.
CONCEPT: WRITING EQUATIONS OF LINES EQ: HOW DO WE WRITE THE EQUATION OF A LINE THAT IS PARALLEL OR PERPENDICULAR TO A GIVEN LINE? (G.GPE.5) VOCABULARY.
Objective - To write equations of parallel and perpendicular lines.
Finding Equation of Lines Parallel and Perpendicular to Given Lines Parallel linesPerpendicular lines Slopes are the same Slopes are opposite reciprocals.
2.5 Linear Equations. Graphing using table Graphing using slope and y-intercept (section 2.4) Graphing using x-intercept and y-intercept (section 2.5)
Graphing and Writing Equations in Slope-Intercept Form
Equations of lines.
2.3 Linear Functions.
Writing Linear Equation using slope-intercept form.
1.3 Linear Equations in Two Variables Objectives: Write a linear equation in two variables given sufficient information. Write an equation for a line.
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