Co-ordinate Geometry — Important Questions
ICSE · Class 9 · Mathematics
37 important questions from Co-ordinate Geometry for ICSE Class 9 Mathematics, with answers. Includes multiple choice and multiple correct questions.
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Important Questions from Co-ordinate Geometry
Which of the following points lie on the x-axis?
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(3, 0), (-2, 0), (7, 0)
Points on the x-axis have y-coordinate equal to 0. So (3, 0), (-2, 0), and (7, 0) all lie on the x-axis.
If (x, 5) = (3, y), find the values of x and y.
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x = 3, y = 5
For two ordered pairs to be equal, their corresponding components must be equal. So x = 3 and y = 5.
Which quadrants contain points with positive x-coordinates?
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First quadrant, Fourth quadrant
First quadrant has (+, +) and fourth quadrant has (+, -), so both have positive x-coordinates.
The equation of the y-axis is:
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x = 0
On the y-axis, all points have x-coordinate equal to 0, so the equation is x = 0.
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