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4.4 Parallel & Perpendicular Lines

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22 Nsɛmmisa

Parallel and Perpendicular Lines

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Practice 1: Get Ready to Go to the Board!

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Practice 2: Get Ready to go to the board!

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Independent Practice

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1.

Do Now
What is your routine after school? Do you have sports or activities you do? Do you take care of siblings?
Where do you complete your homework? How do you keep track of which homework assignments you need to do every night?

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2.

Determine which of the lines are parallel.

a

b

c

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3.

Write an equation of the line that passes through (5, 4) and is parallel to y = 2x + 3.

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4.

Perpendicular Lines have OPPOSITE RECIPROCAL slopes.

What is the slope of each line that is perpendicular to the line given.

A.

B.

C.

D.

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5.

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6.

Write an equation of the line that passes through (3, 1) and is perpendicular to the line

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7.

Write the slope-intercept form of the equation parallel to y = -2x + 1 and through (2, -1).

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8.

Write the slope-intercept form of the equation parallel to y = 3x - 3 and through (1, -1).

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9.

Write the slope-intercept form of the equation parallel to y = 2x - 4 and through (3, -5).

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10.

Write an equation of the line that passes through (3, 1) and is parallel to the line

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11.

Write an equation in slope-intercept form of the line that passes through the given point and is parallel to the given line.

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12.

Write an equation in slope-intercept form of the line that passes through the given point and is parallel to the given line.

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13.

Write an equation in slope-intercept form of the line that passes through the given point and is perpendicular to the given line.

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14.

Write an equation in slope-intercept form of the line that passes through the given point and is perpendicular to the given line.

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15.

YOU MUST SHOW WORK FOR CREDIT!!!
Determine if the lines are parallel, perpendicular or neither?

Parallel

Perpendicular

Neither

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16.

YOU MUST SHOW WORK FOR CREDIT!!!
Determine if the lines are parallel, perpendicular or neither?

Parallel

Perpendicular

Neither

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17.

Determine which lines, if any, are perpendicular.

Line A

Line B

Line C

None of the lines are perpendicular

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18.

Slopes of parallel lines are...

always 7.

opposites.

the same.

opposite reciprocals.

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19.

Slopes of perpendicular lines are...

opposites.

always 7.

opposite reciprocals.

the same.

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20.

What slope is parallel to

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21.

What slope is perpendicular to

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22.

Determine if the lines are parallel, perpendicular or neither?

Parallel

Perpendicular

Neither

Tonight's HW

Finish this Formative (all problems #1-22)

Chapter 4 Test:

--> per.1: Dec. 18

-->per. 5: Dec. 19