3.1-3.3

Question 1

If there is a line and a point not on the line then there is exactly one line through the point paralell to the given line

Answer 1

Parallel postulate

Question 2

If there is a line and a point not on the line then there is exactly one line through the point perpendicular to the given line

Answer 2

Perpendicular postulate

Question 3

The sum of all triangles in the will always equal 180 degrees

Answer 3

Triangle sum theorem

Question 4

If two lines are paralell to the same line then they are paralell to each other

Answer 4

Transitive property of parralell lines

Question 5

horizontal slope

Answer 5

zero slope

Question 6

vertical slope

Answer 6

undefined slope

Question 7

Two nonvertical lines are paralell if and only if they have the same slope

Answer 7

Slopes of parralell lines postulate

Question 8

Two nonvertical lines are perpendicular if and only if the produict of their slopes is negative 1

Answer 8

Slopes of perpendicular lines postulate