II and perpendicular line theroems

Question 1

what does it mean if 2 lines are perpendicular to the same line?

Answer 1

the lines are parallel- they are parallel if they are perpendicular to the same line

Question 2

what does it mean if a line is perpendicular to one of 2 parallel lines?

Answer 2

it must be perpendicular to the other as well- if a line is perpendicular to one of two parallel lines, it is perpendicular to the other

Question 3

what does it mean if 2 lines are parallel to the same line?

Answer 3

the lines are parallel to each other- if 2 lines are parallel to the same line, they are parallel to each other as well

Question 4

How to find equation for parallel line

Answer 4

keep slope the same, look for b for slope intercept or points given for point slope form

Question 5

How to find equation for perpendicular line

Answer 5

negate slope, look for b for slope intercept or use points given for point slope form

Question 6

How to find equation for perpendicular bisector

Answer 6

1. find slope, then flip and negate it (it IS perpendicular)
2. find midpoint of points (x1 +x2 divided by 2, y1 + y2 divided by 2) for set of points to use, use for either equations

Question 7

Parallel lines have

Answer 7

equal slopes

Question 8

Perpendicular lines have

Answer 8

Negative reciprocal slopes