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Question 1117104: find the value of x in (x,4) if this point is 10 units distant from (0,-2)
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! find the value of x in (x,4) if this point is 10 units distant from (0,-2)
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diffy, the difference in the y values is 6.
--> diffx = 8 from the 3-4-5 right triangle times 2 --> 6-8-10 triangle.
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x = -8 or +8
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The hard way:
10 = sqrt(diffx^2 + diffy^2)
100 = diffx^2 + 36
diffx^2 = 64
x = -8, +8
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