How would you find the distance between two points if the line segment that them were vertical?
Multiple choice
Options?
you would use the distance formula. Of course it is simple if the line goes straight up and down
A.subtract the x-cordinate of the points and take the absolute value
I have only learnt how to find distance with the distance formula so far.
I think subract y-cordinate
B.Add the x-cordinate of the points and take the absolute value
C.Add the y-cordinate of the points and take the absolute value
You think?
Subract the y-cordinate...do you have that option?
yea thats D.
Hm
if the line goes up and down, all the points have the same x value the distance formula is \[ \sqrt{ (x_1 - x_2)^2 + (y_1- y_2)^2 } \] if the x values are all the same, then \( x_1 - x_2= 0\) and the formula simplifies to \[ \sqrt{(y_1- y_2)^2 } \] now take the square root \[ (y_1-y_2) \] however, we only take the positive square root, so we should show this by absolute value \[ |y_1-y_2| \]
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