medal and fan for the answer!
A point Q on a segment with endpoints A (2, −1) and C (4, 2) partitions the segment in a 3:1 ratio. Find Q. You must show all work.
it needs to be in full sentences :\
You can use the midpoint formula twice (for lazies)
@SolomonZelman wait how would you use it? sorry im confused :\
\(\Large\color{blue}{ \Huge{(}\frac{\LARGE {x_1-x_2}}{2} , \frac{\LARGE {y_1-y_2}}{2} \Huge{)} }\)
Once, and then the other time. You can get 2 ways to divide it.
but the midpoint formula just tells you the points that are in the middle... im sorry im really confused haha
yes, but then you can use it again, and the middle of the half segment, would be the partition of 3:1.
oh! that makes sense! thank you so much @SolomonZelman
would the answer be (3.5, 1.5) or (3.5, 3.5) @SolomonZelman
My bad, I put - instead of plus in x1+x2 and y1+y2
I see you figured though...
\(\LARGE\color{blue}{ (2, −1) ~~~~~~ (4, 2) }\) \(\LARGE\color{blue}{ \Huge{(} \frac{2+4}{2}, \frac{(-1)+2}{2} \Huge{)} }\)
So the middle is, ` ( 3 , 0.5 ) `
And then, MIDPOINT of `(2,-1) (3,0.5) ` or MIDPOINT of `(4,2) (3,0.5) `
(2.5 , -0.25) or (3.5 , 1.25)
so it would be 3.5, 1.25 as the answer? thank you so much by the way!
Yes, or (2.5 , -0.25)
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