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Mathematics, 19.09.2021 21:30 Josephzaz
Describe the error in finding the distance between $A(6,\ 2)$ and $B(1,-4)$ .
Student work marked wrong shows the steps in a calculation. First line. A B equals left-parentheses 6 minus 1 right-parentheses squared plus left bracket 2 minus left-parentheses negative 4 right-parentheses right bracket to the second power. Second line. Equals 5 squared plus 6 squared. Third line. Equals 25 plus 36. Fourth line. Equals 61.
Did not use a ruler.
Did not find the midpoint.
Did not take the square root.
Did not make all the signs positive.
Question 2
The actual length, $AB$ , rounded to the nearest tenth is
units.
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Describe the error in finding the distance between $A(6,\ 2)$ and $B(1,-4)$ .
Student work marked...
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