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find the slope of the line connecting the points A and B find the slope of the line connecting the points C and D post your answer here.
do you know how to find the slope when two points are given?
IS SLOPE 3 LINE C,D 3/5
the slope of line CD is -3/5 what is the slope of the line AB?
sure? it is (9-0)/(1-4)
okay good so what is the condition for two lines to be parallel and perpendicular to each other?
HAVE SAME SLOPE
you have to be more specific than that. what are you talking about?
SO ITS PARALLEL
okay, the lines are parallel if the slopes are the same. is -3 equal to -3/5?
idk thats the part i get confused on
okay, the two slopes are not the same. there fore the two lines are not parallel. now, what is the condition for two lines to be perpendicular?
their slope are negative reciprocal of each other
okay so what is the negative reciprocal of -3?
no, try again. if x is your number, -(1/x) is its negative reciprocal
so if -3 is your number, what is its negative reciprocal?
no! it is -(1/(-3)) = 1/3. so, is 1/3 equal to -3/5?
so then the lines are not perpendicular. So your answer is the lines are neither parallel nor perpendicular to each other.
k i thnk i get it sorry kinda a slow today appreciate your patience:) gonna try these other similiar problems thanks again....
okay you are welcome.