which points are collinear 3,1 , 5,5 and 7,9,
don forget to show work
5:5 cause they are on the line y=5
how do you show the work though?????
Hmm....I don't really know how to explain in any other way..sorry
Jackie do the same thing as before..: Find the line that connects that (3,1) and (5,5).
the equation is: y-y1 = M(x-x1) 5-1 = M(5-3) 4 = M * 2, M = 2
well its cuz idk how to do that sorry -_-
so now: y - y1 = 2 ( x - x1 ) y - 1 = 2( x - 3 ) y - 1 = 2x - 6 y = 2x - 5
Now try the last point and see if it's on the line: (7,9) when x = 7 y = 2 * 7 - 5 = 14 - 5 = 9 so as you see: x = 7, y = 9 yea that's the same as our point: (7,9)
so all 3 points are on the same line
so there all collinear
ok thank you
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