Parallel Lines
Parallel Lines and Transversals
Special Angle Relationships
Proving Lines Parallel
Linear Pairs/Vertical Angles
Slopes
Potpourri
100
Sometimes, always, or never?
Skew lines ______ intersect.
Never
100
If two parallel lines are cut by a transversal, what is the relationship between the consecutive interior angles formed?
Consecutive interior angles are supplementary!
100
If two parallel lines are cut by a transversal, what is the relationship between the corresponding angles formed?
Corresponding angles are congruent.
100
Two lines are cut by a transversal. If angles A and B are corresponding and the measure of angle A is 80o and the measure of angle B is 90o, does that prove that the lines are parallel? Why?
No. Angles A and B must be congruent.
100
Fill in the blank:
Vertical angles are ______
Linear pairs are _______
Congruent
Supplementary
100
What is the letter we use to represent slope?
m
100
Which company's slogan is "You're in good hands?"
Allstate
200
Sometimes, always, or never?
Skew lines are _________ parallel.
Never
200
If two parallel lines are cut by a transversal, what is the relationship between the alternate interior angles formed?
Alternate interior angles are congruent.
200
If two lines are parallel and cut by a transversal, then consecutive interior angles are _____________.
Supplementary
200
Two lines are cut by a transversal. If angles A and B are consecutive interior angles and the measure of angle A is 80 degrees and the measure of angle B is 100o, does that prove that the lines are parallel? Why?
Yes. Consecutive interior angles converse
200
What is the value for x in the diagram. Explain what angle relationship you used. 
128 degrees, because they are vertical angles which are always congruent
200
What is the method for finding the slope of a line plotted on a graph?
rise over run (count the gridlines from one point to another)
200
Some of our favorite collective nouns for animals include a congregation of alligators, a business of ferrets, an ostentation of peacocks, and a gaggle of what other fowl?
Geese
300
Sometimes, always, or never?
Two parallel lines __________ lie in the same plane.
Always
300
If two parallel lines are cut by a transversal, what is the relationship between the vertical angles formed?
Vertical angles are congruent.
300
If two parallel lines are cut by a transversal and if one alternate interior angle is x+15, and the other is 2x+5.
What is the value of x?
x = 10
300
Two lines are cut by a transversal. If angles A and B are alternate interior angles and the measure of angle A is 80o and the measure of angle B is 100o, does that prove that the lines are parallel? Why?
No. Alternate interior angles are congruent.
300
Find the value of x and explain what angle relationship you used to reach your answer.
x = 63
300
Find the slope between (2, -5) and (5, 0)
m=5/3
300
Who was the first woman pilot to fly solo across the Atlantic?
Amelia Earhart
400
Line A is parallel to line B, and line B is parallel to line C. Is line A parallel to line C?
Yes.
400
If two parallel lines are cut by a transversal, what is the relationship between the consecutive interior angles formed?
Consecutive interior angles are supplementary.
400
If two parallel lines are cut by a transversal and if one consecutive interior angles is 3x+4 and the other is 2x+6,
Find the value of x
x=34
400
Two lines are cut by a transversal. If angles A and B are same side interior angles and the measure of angle A is 80o and the measure of angle B is 80o, does that prove that the lines are parallel? Why?
No. Same side interior angles must be supplementary.
400
Solve for x: 
x = 38
400
Find the equation of a line in slope intercept form that is parallel to y=-3x+6 and has point (-1, 4)
y=-3x+1
400
What is the tiny piece at the end of a shoelace called?
An aglet
500
Describe a real-world example or model of parallel lines.
Ex: Skis on a skier's feet.
500
Two parallel lines are cut by a transversal. If Angles 3 and 4 are alternate exterior angles and the measure of angle 3 is 80 degrees, what is the measure of angle 4?
80 degrees
500
If two lines are parallel and cut by a transversal, then consecutive interior angles are supplementary, and if one of those interior angles is 7x+12 and the other is 3x+8...
What are the measures of each angle?
56 degrees and 124 degrees
500
Two lines are cut by a transversal. If angles A and B, consecutive interior angles, and are supplementary, does that prove that the lines are parallel? Why?
Yes. Consecutive interior angles converse
500
Solve for x: 
x = 15
500
Find the equation of a line in slope intercept form that is perpendicular to y=-1/2x+6 and has point (-7, 10)
y=2x+24
500
In what year was the internet opened to the public?
1993