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Questions and Answers
Which of the following is the correct formula for the distance between two points A(x1, y1) and B(x2, y2) in a plane?
Which of the following is the correct formula for the distance between two points A(x1, y1) and B(x2, y2) in a plane?
- AB = sqrt(x2 - x1 + y2 - y1)
- AB = (x2 - x1)(y2 - y1)
- AB = sqrt((x2 - x1)^2 + (y2 - y1)^2) (correct)
- AB = (x2 + x1)(y2 + y1)
What is the slope of the line passing through the points (3, -2) and (5, 4)?
What is the slope of the line passing through the points (3, -2) and (5, 4)?
- -3
- 3
- -2
- 1/2 (correct)
What is the equation of the line passing through the points (2, 3) and (4, 5)?
What is the equation of the line passing through the points (2, 3) and (4, 5)?
- y = -x + 5
- y = x + 1
- y = x + 3 (correct)
- y = 2x + 1
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