Bellwork1. Given the two lines: y = 4x -2 and y

=-1/4x +3. Are the two lines parallel, perpendicular or neither?

2. Write the equation of the line who has the same slope as 4x – 2y = 7 and the same y-intercept as y-9=x.

3. Write the equation of the line that passes through the point (4,1) and has the same slope as x = -y + 4.

Chapter 4.4: ContinuedOctober 30, 2013

ObjectivesYou will be able to write an equation of the

line that passes through a given point, parallel to a given line.

You will be able to write an equation of the line that passes through a given point, perpendicular to a given line.

Example Write an equation in slope-intercept form

for the line that passes through (4,7) and is perpendicular to the graph of 3y = 2x -3.

Example

Write an equation in slope-intercept form for the line that passes through (2,3) and is perpendicular to the graph of: 2x + 3y =4.

Example

Write an equation of the line that is parallel to the graph of y=7x-3 that passes through the origin.

Ticket to Leave

Determine whether the graphs of each pair of equations are parallel, perpendicular or neither.

-4x +3y = 3

4x -3y = 3

Homework

Pg 241 (10-16 evens, 24,26,28,34-36,45,47)

Bellwork (TO TURN IN)

Write an equation of a line that is perpendicular and parallel to the line 4y – x = 10.

Write an equation in slope-intercept form for the line that passes through (0,2) and is parallel to the line: 5x + y = 8.

Write an equation in slope-intercept form for the line that passes through (-3,-2) and perpendicular to 2y – 8 = 4x.

Group Work (turning ONE in)

Pg 241 (27,30,32)

Homework

Worksheet

Bellwork

Write an equation of a line that is parallel and perpendicular to 3x – 4y = 12.

Find r if the line that passes through (3,5) and (r,13) is parallel to the line 14x-7y=21.

Write an equation of a line that is perpendicular and crosses through the x-intercept of the line 4x – 5y = 16.