document.write( "Question 965302: Point A has coordinates (4,2). the x-coordinate of point B is 10. The distance between point A and point B is 10 units. Your friend says the coordinates of point B could be (12, 8). What are the possible coordinates of point B? \n" ); document.write( "

Algebra.Com's Answer #590019 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use the distance formula and don't listen to your friend.
\n" ); document.write( " $\"D%5E2=%28x%5B1%5D-x%5B2%5D%29%5E2%2B%28y%5B1%5D-y%5B2%5D%29%5E2\"$
\n" ); document.write( " $\"10%5E2=%284-10%29%5E2%2B%282-y%29%5E2\"$
\n" ); document.write( " $\"100=36%2B%282-y%29%5E2\"$
\n" ); document.write( " $\"%282-y%29%5E2=64\"$
\n" ); document.write( " $\"2-y=+0+%2B-+8\"$
\n" ); document.write( " $\"y=2+%2B-+8\"$
\n" ); document.write( " $\"y=-6\"$ and $\"y=10\"$
\n" ); document.write( "

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