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\(The length of the segment between the points $(2a, a-4)$ and $(4, -1)$ is $2\sqrt{10}$ units. What is the product of all possible values for $a$?\)

 May 30, 2020
 #1
avatar+661 
+1

Your latex sucks.

_____________________________________________

 - Just plug into the distance formula and solve.

 

\((2\sqrt{10})^2=40\)

\((4-2a)^2+(-1-(a-4))^2=40\)

\((4-2a)^2+(3-a)^2=40\)

 

Now solve (if you can, try using vieta's formulas to do it even faster.)

 May 30, 2020
 #2
avatar+176 
+2

:'-(

 

I donnt get it

 May 31, 2020

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