Find the point L such that JL and KL form a 3:1 ratio.
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OpenStudy (anonymous):
OpenStudy (anonymous):
(−1.25, 2.5)
(−0.5, 1)
(2.25, −0.5)
(0.5, 2)
OpenStudy (anonymous):
@ganeshie8
OpenStudy (anonymous):
@ganeshie8 here is the post question
OpenStudy (anonymous):
@ganeshie8 will you please help me with this question
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ganeshie8 (ganeshie8):
hey still here @sksxs3
OpenStudy (anonymous):
yes
ganeshie8 (ganeshie8):
look at the given line segment, you want to find a point on it that splits the segment in 3:1 ratio
|dw:1435244383121:dw|
OpenStudy (anonymous):
ok
so how do i do that
ganeshie8 (ganeshie8):
how far are the points horizontally ?
|dw:1435244482276:dw|
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ganeshie8 (ganeshie8):
just count he grids horizontally
OpenStudy (anonymous):
7 spaces
ganeshie8 (ganeshie8):
Yes, so we want the point to be at 3/4*7 away from J horizontally
3/4*7 = ?
OpenStudy (anonymous):
can i turn 3/4 into a decimal then multiple it by 7 or will that be to complicated
ganeshie8 (ganeshie8):
Exactly! just do that.
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OpenStudy (anonymous):
I did 0.75 x 7= 5.25
ganeshie8 (ganeshie8):
add -3 to that
ganeshie8 (ganeshie8):
5.25 - 3 = ?
OpenStudy (anonymous):
2.25
ganeshie8 (ganeshie8):
Yes, thats the x coordinate of required point.
look at options
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OpenStudy (anonymous):
so the answer is C because thats the only one with 2.25 in it
OpenStudy (anonymous):
Quick question if you don't mind me asking…
do you think you could quickly show me how to find the y coordinate because I am not the best with ratios and I would really appreciate it if you showed me how?!!
thanks @ganeshie8
ganeshie8 (ganeshie8):
sure :) how far are the points J and K vertically ?
|dw:1435245688565:dw|
OpenStudy (anonymous):
oh sorry i didn't see u respond
its 6 spaces
ganeshie8 (ganeshie8):
Yes, so you want the point to be 3/4*6 away from J
3/4*6 = ?
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OpenStudy (anonymous):
4.5
OpenStudy (anonymous):
then don't you subtract 3 from that or no
ganeshie8 (ganeshie8):
subtract that from y coordinate of J : 4
4-4.5 = ?
OpenStudy (anonymous):
oh ok
OpenStudy (anonymous):
-0.5
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OpenStudy (anonymous):
Thank so much for your help @ganeshie8 I will give you a medal to for helping me thank you
ganeshie8 (ganeshie8):
yw :)
OpenStudy (anonymous):
btw were u the one who gave me the medal @ganeshie8