Find the x value for point F such that DF and EF form a 1:3 ratio.

0.75

−1

2

−1.75

Question

Find the x value for point F such that DF and EF form a 1:3 ratio.



 0.75

 −1

 2

 −1.75

anonymous · Answer

attachment

myininaya · Answer

so you know distance formula will be involved?
and you want one distance to be 3 times the other, right?

anonymous · Answer

I'm guessing so! :) @myininaya

myininaya · Answer

great
can you set the equation then?

anonymous · Answer

Okay, 2 minutes please

anonymous · Answer

$$\sqrt{(2-(-3)^{2}+(4-(-3)^{2}}$$

anonymous · Answer

Is this correct? @myininaya

myininaya · Answer

ok we have this line |dw:1402446909617:dw|

we want the distance from E to F be equal 3 times the distance from D to F

You should have an equation here

I just called F (x,y) since we don't know it yet 
and we are looking for that value x