Ask your own question, for FREE!
Mathematics 18 Online
OpenStudy (anonymous):

determine if points are parallel perpendicular or neither .....(2,4)and (-1,-1)

OpenStudy (king):

parallel?

OpenStudy (anonymous):

points cannot be parallel of perpendicular....only lines can be

OpenStudy (king):

Oh !! :)

OpenStudy (anonymous):

the 2 numbers are points on a line in a graph. i could graph it , but they want us to do the equation instead

OpenStudy (king):

Then i thnk they are parallel?

OpenStudy (anonymous):

i dont need a guess, i need someone who knows how to write the equation.

OpenStudy (anonymous):

i am sure QED knows xD

OpenStudy (anonymous):

show me the graph bcuz if u just give me two points u cannot conclude anything

OpenStudy (king):

You can plot the graph.......

OpenStudy (anonymous):

they are perpendicular

OpenStudy (anonymous):

i know this part, there is an equation to figure it out with out having to graph them. i need to know how to do the equation , find someone who knows how to do that........

OpenStudy (anonymous):

(2,4) and (-1,-1) with (8,0) and (11,5)

OpenStudy (anonymous):

ok what about those two pairs of points?....do you want to know if the lines are perp or parallel?

OpenStudy (anonymous):

the equation will determine that

OpenStudy (anonymous):

first two points yield y = (5/3) x + wtvr 2nd two points yield y = (5/3) x + other wtvr therefore, the two lines are parallel since they have the same slope

OpenStudy (anonymous):

that is stranger, cuz when i actually put them on the graph they are perpendicular. how did you get thte y- yield ?

OpenStudy (anonymous):

to find the slope of each pair of points, you need to do (change in y) over (change in x)....they both give 5/3

OpenStudy (anonymous):

ok, now i am gonna sound like i am giving you a hard time, i dont understand what you mean by change in y and change in x

OpenStudy (anonymous):

is that y2-y1/x2-x1 ?

OpenStudy (anonymous):

have you learnt how to find the slope of a line?

OpenStudy (anonymous):

yes it is what u wrote

OpenStudy (anonymous):

ok, it is just the different terms everyone uses are different and confuse me......sorry

OpenStudy (anonymous):

its ok

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!