Quick Hw Question Geometry:

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thread starter ClownIzSiick Apr 08 2010 + PM | QUOTE | PERMALINK | REPORT

Question: Determine by means of slopes whether the group of points represent the vertices of a right triangle. (2,2), (4,1), (4,6) Do all slopes have to be equal? Help please

My Characters: Clownizsick - 61 Scania Aran in Memory

RexRaydon 04/08/10 + PM | QUOTE | PERMALINK | REPORT

No the slopes should not be equal. Look at a triangle. Do you think the slopes of the three lines are all equal? They are not. I think there's a formula for this but I don't remember.

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Sparxxors847 04/08/10 + PM | QUOTE | PERMALINK | REPORT

the slope of 2 lines should be perpendicular/equal -1 when multiplied together.

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muerto72 04/08/10 + PM | QUOTE | PERMALINK | REPORT

find the slope of em all if the slope of one is a negative reciprocal (ex. 1/3 , neg. recip. = -3) then its a rt. tri.

My Characters: EnticingIce - 30 Broa I/L Wizard

bombinator 04/08/10 + PM | QUOTE | PERMALINK | REPORT

slope = m slope formula = (y2 - y1) / (x2 - x1) Numbers are subscripts btw. Input respective set of y and x values for each one. ie. slope between (2, 2) and (4, 1) = [ (1) - (2) ] / [ (4) - (2) ] = -1 / 2 do that for all of them and see if they form a right triangle

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MashiLove 04/08/10 + PM | QUOTE | PERMALINK | REPORT

First, draw a triangle and then find the slope of each side of triangle. Do the pythagorean theorem if the hypotenuse of your right triangle is equal to the 2 sides squared and added together

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k0r3anxpryd3 04/08/10 + PM | QUOTE | PERMALINK | REPORT

[quote] bombinator : slope = m slope formula = (y2 - y1) / (x2 - x1) Numbers are subscripts btw. Input respective set of y and x values for each one. ie. slope between (2, 2) and (4, 1) = [ (1) - (2) ] / [ (4) - (2) ] = -1 / 2 do that for all of them and see if they form a right triangle [/quote] Just follow that guy's formula. When you get all three slopes, if any of the two slopes are negative reciprocals of each other, then it's a right triangle.

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ClownIzSiick 04/08/10 + PM | QUOTE | PERMALINK | REPORT

None of the slopes have negative reciprocal so its not a right triangle right?

My Characters: Clownizsick - 61 Scania Aran in Memory

muerto72 04/08/10 + PM | QUOTE | PERMALINK | REPORT

u are correct then

My Characters: EnticingIce - 30 Broa I/L Wizard