Angle Pairs
Angle Pairs and Their Measures
Proving Lines are Parallel
Using Slope to Determine if Lines are Parallel, Perpendicular, or neither
Using Slope to Write the Equation of a Line
100
Angle 1 and Angle 7 are ____
Alternate Exterior Angles
100
If the two lines are parallel, then Alternate Exterior Angles are _______________. (complementary, supplementary, congruent, etc.)
Congruent
100
If the measure of Angle 2 is 45 and the measure of Angle 8 is 47, are lines m and n parallel?
No
100
If two lines are parallel, then their slopes are _________.
The same
100
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200
Angle 4 and Angle 5 are…
Same Side Interior Angles
200
If the measure of Angle 3 is 120, what is the measure of Angle 7?
60
200
If the measure of Angle 4 is 40 and the measure of Angle 8 is 40, are lines m and n parallel?
Yes
200
If two lines are perpendicular, then their slopes are ____________.
Opposite reciprocals
200
Write the equation of a line which has slope m=2 and passes through the point (0,6) in slope intercept form.
Y=2x+6
300
Angle 3 and Angle 5 are_____
Alternate Interior Angles
300
If the two lines are parallel, and the measure of Angle 5 is 130, what is the measure of Angle 2?
50
300
What is the converse of the Alternate Exterior Angles Theorem?
If Alternate Exterior Angles are congruent when two lines are cut by a transversal, then the two lines are parallel.
300
What does it mean if two numbers are opposite reciprocals?
Their product is -1
300
Write the equation of a line which has slope m = 5/2 which passes through the point (2, 6)
Y=5/2x +1
400
Angle 2 and Angle 8 are…
Corresponding Angles
400
What is the Same Side Interior Angles Theorem?
If two parallel lines are cut by a transversal, then same side interior angles are supplementary.
400
If the measure of Angle 5 is 115, what would the measure of Angle 1 have to be for line m and line n to be parallel?
115
400
What would the slope of a line parallel to y=-2/5x + 25 be?
-2/5
400
Write the equation of a line which is parallel to y = 3x + 6 and passes through the point (3,0)
Y = 3x -9
500
Angle 6 and Angle 7 are…
A Linear Pair
500
If the two lines are parallel, and the measure of Angle 4 is 7x-9 and the measure of Angle 8 is 5x+5, what is x?
7
500
If the measure of Angle 1 is 121, what would the measure of Angle 8 have to be for line m and line n to be parallel?
59
500
what would the slope of a line perpendicular to y=-2/5x +25 be?
5/2
500
Write the equation of a line which is perpendicular to y=2x and passes through the point (2, -5)
Y=-1/2 x -4
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