Answer:
<h2>Solution,
Let the points be A and B
A(-4 , 1)------>( X1, y1)
B(2,4)---------->( x2, y2)
Now,
Gradient:
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2 answers:
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Answer
Elena must have substracted 1/2x from both sides of the equation.
Lin must have multiplied both sides of the equation by 2
Explanation
The equation given is
For Elena to have arrived at
Then Elena must have substracted 1/2x from both sides of the equation.
That is;
For Lin to have arrived at
It shows Lin must have multiplied both sides of the equation by 2
That is;