Asked by kaitlyn
B is the midpoint of AC. A has coordinates (-3,4), and B has coordinates (-1 1/2,1). Find the coordinates of C.
Did i get the right answer?
(2)-1 1/2=(2)-3+x(over 2)
-3-3=3+x-3
-6=x
(2)1=(2)4+y(over 2)
2-4=4+y-4
-2=y
The coordinates of C are (-6,-2)
Did i get the right answer?
(2)-1 1/2=(2)-3+x(over 2)
-3-3=3+x-3
-6=x
(2)1=(2)4+y(over 2)
2-4=4+y-4
-2=y
The coordinates of C are (-6,-2)
Answers
Answered by
Steve
(-3+x)/2 = -3/2
-3+x = -3
x = 0
Think about it. Starting at -3, x grows by 3/2 to -3/2 at B. It grows by another 3/2 to be 0 at C.
(4+y)/2 = 1
4+y = 2
y = -2
Had you plotted these points, you would have seen that your C point was way off.
And what's with the "over"? This is math -- use math symbols!
Your carelessness with parentheses easily leads to wrong answers.
-3+x = -3
x = 0
Think about it. Starting at -3, x grows by 3/2 to -3/2 at B. It grows by another 3/2 to be 0 at C.
(4+y)/2 = 1
4+y = 2
y = -2
Had you plotted these points, you would have seen that your C point was way off.
And what's with the "over"? This is math -- use math symbols!
Your carelessness with parentheses easily leads to wrong answers.
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