1. MS Algebra A-F-IF-7 – Ch. 6.5a Write Equations of Parallel Lines
ALGEBRA SUPPORT (Homework)
Write Equations of Parallel Lines

2. SUPPORT Learning Target
Title: 6.5a Write Equations of Parallel Lines
Date:
SUPPORT Learning Target
By the end of the period, I will write equations of parallel lines.
I will demonstrate this by completing Four-Square Notes and by solving problems in a pair/group activity.

3. Home Work 1-2-3: 1) Class 4-Square Notes Put In Binder?
2) Section 6.5 Pg ) Section ______
TxtBk.Prob.#3,4,5,6,7,14,31,34 Notes Copied on blank sheet Solved and Put in Binder? of paper in Binder?
Table of Contents
Date Description Date Due

4. m1 = m2 m1 = m2 Parallel Lines m1 = m2 =
Notes:
Two different non-vertical lines in the same plane
are parallel if they have the same slope.
m1 = m2
Y2 – Y1
Y3 – Y4
m1 =
m2 =
X2 – X1
X3 – X4
y – Y1 = m1(x – X1)
y = m1x + b
y – Y3 = m2(x – X3)
y = m2x + b
m1 = m2

5. Step 1: Identify the slope.
HW # 3
Step 2: Find the y-intercept
Step 3: Write general y = mx + b equation
Write an equation of the line that passes through the given point and is parallel to the given line.
(-1, 3), y = 2x + 2

6. Step 1: Identify the slope.
HW # 4
Step 2: Find the y-intercept
Step 3: Write general y = mx + b equation
Write an equation of the line that passes through the given point and is parallel to the given line.
(6, 8), y = -(5/2)x + 10

7. Step 1: Identify the slope.
HW # 5
Step 2: Find the y-intercept
Step 3: Write general y = mx + b equation
Write an equation of the line that passes through the given point and is parallel to the given line.
(5, -1), y = -(3/5)x – 3

8. Step 1: Identify the slope.
HW # 6
Step 2: Find the y-intercept
Step 3: Write general y = mx + b equation
Write an equation of the line that passes through the given point and is parallel to the given line.
(-1, 2), y = 5x + 4

9. Step 1: Identify the slope.
HW # 7
Step 2: Find the y-intercept
Step 3: Write general y = mx + b equation
Write an equation of the line that passes through the given point and is parallel to the given line.
(1, 7), -6x + y = -1

10. Storm Check (Think, Write, Discuss, Report)
How can you verify mathematically if two lines are parallel?
I can verify that two lines are parallel when ________
_______________________________________________
______________________________________________.

11. Line A: y = (2/3)x – 1 Line B: y = (2/3)x + 1
HW # 14
Determine which lines, if any, are parallel.
Line A: y = (2/3)x – 1
Line B: y = (2/3)x + 1

12. HW # 31
Step 1: Calculate the slope between two points.
Multiple Choice
What is an equation of the line that passes through (0, 0) and is parallel to the line that passes through (2, 3) and (6, 1)? Show your work!
y = ½x
y = -½x
y = -2x
y = 2x

13. HW # 34
Step 1: For the 1st line, calculate the slope between two points.
Step 2: For the 2nd line, calculate the slope between two points.
Step 1: Compare the slopes from the two lines.
Is the line through the points (1, 3) and (3, 7) parallel to the line through the points (5, 9) and (7, 13)? Justify your answer using slopes!
m1 = m2
Y2 – Y1
Y3 – Y4
m1 =
m2 =
X2 – X1
X3 – X4

14. Vocabulary Slope Parallel Lines Perpendicular Lines
Slope-Intercept Form
Point-Slope Form

15. SUPPORT Learning Target
Title: 6.5a Write Equations of Parallel Lines
Date:
SUPPORT Learning Target
By the end of the period, I will write equations of parallel lines.
I will demonstrate this by completing Four-Square Notes and by solving problems in a pair/group activity.