A segment with endpoints F (4, 9) and G (7, 2) is divided by a point H such that FH and GH form a 1:3 ratio. Find H. (5 points) Select one: a. (5.3, 6) b. (4.75, 7.25) c. (4.1, 7.4) d. (5.25, 5.75)
@Yttrium @ganeshie8 @Nurali @lowcard2
@Yttrium @ganeshie8 @Nurali @lowcard2
If we look at the result objectively, we realize that the line must be divided into four parts. We then realize that the shorter segment must be FH. (Which will be one of the four units.) To divide the line into four, we then use the midpoint formula. \[(\frac{ x+x \prime }{ 2 }, \frac{ y+y \prime }{ 2 })\]
Get the midpoint first. Can you @prowrestler ?
yes i can try
i got 5.5 for both
do it now
well, you're in good hands. I'll bow out.
let's name that point a A now. Get the mid point of A and F
i dont know that
you got (5.5,5.5) right? well check the mid point of (5.5,5.5) and (4,9)
how am i supposed to do that
same
what do you mean same
same method
i did and i got 5.5
Well, I was getting the length of FG. Then because the parts are in a ratio of 1:3, I was able to say how long FH needs to be. That would allow us to sort through the points given to determine which one provides us the necessary length of FH. It is working backwards, however, and so I was trying to sort through a way to work it out more directly.
What are you working on right now, topic-wise? That might give me a clue as to the proper method...
I knew there had to be a more direct way to get the answer so I was working on it while we did these others. So, let us say that we knew the value of x that point H must be at... We can call that "x"
|dw:1398764604079:dw| We know that the distance between the x-coordinate of F and H must be 1/3 of the distance between x and 7 Or you could write it differently, that 3 times the distance between F and H equals the distance between H and G.
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