Math! Help Hurry!
posted by JT .
Two vertices of a right triangle have the coordinates (−2, 5) and (9, 5) .
What is the length of the side formed by these vertices?

Math! Help Hurry! 
Scott
same ycoordinates
a vertical line
length is the difference of the xcoordinates 
Math! Help Hurry! 
damiensandowz
Let A (2,5) be (x1,y1) and B(9,5) be (x2,y2).
Using distance formula,
distance^2(d^2)=(x2x1)^2+(y2y1)^2
= [9(2)]^2 + [55]^2
= 11^2 + 0^2
= 11^2
= 121
Now, converting the above information to its square root to obtain the actual length.
distance (d)= /121
= 11 units.
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