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Question
Find the slope of a line, which passes through the origin, and the mid-point of the line segment joining the points A (0, -4) and B (8, 0).
Find the slope of a line, which passes through the origin, and the mid-point of the line segment joining the points A (0, -4) and B (8, 0).
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Solution
The correct option is A
The co-ordinates of the mid-point of the line segment jioning the points
A(0,-4) and B(8,0) are
(0+82,4+02)=(4,−2)
Then the slope of the line passing through (0,0) and (4,-2) is y2−y1x2−x1=−2−04−0=−24=−12
The co-ordinates of the mid-point of the line segment jioning the points
A(0,-4) and B(8,0) are
(0+82,4+02)=(4,−2)
Then the slope of the line passing through (0,0) and (4,-2) is y2−y1x2−x1=−2−04−0=−24=−12