Select the equations that are parallel and perpendicular to y = x + 5 and that pass through the point (-2, -1).

parallel: y = -x - 1
perpendicular: y = x + 2

parallel: y = x - 1
perpendicular: y = -x + 1

parallel: y = x + 1
perpendicular: y = -x - 3

parallel: y = 2x - 2
perpendicular: y = -2x - 1

Question

Select the equations that are parallel and perpendicular to y = x + 5 and that pass through the point (-2, -1). 

 parallel: y = -x - 1
 perpendicular: y = x + 2 

 parallel: y = x - 1
 perpendicular: y = -x + 1 

 parallel: y = x + 1
 perpendicular: y = -x - 3 

 parallel: y = 2x - 2
 perpendicular: y = -2x - 1

mathmale · Answer

What do YOU think?
What can you say about the slopes of two lines that are parallel?
What can you say about the slopes of two lines that are perpendicular?

anonymous · Answer

I really don't know where to start

mathmale · Answer

forgive me for asking this, but do you have a textbook at hand, and if so, have you read up on parallel and perpendicular lines?  or done research on the 'Net about the same?