Question # 1

The coordinate axes divide the plane into------------ equal parts:

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1

2

3

4

Inclination of Y-axis or of any line parallel to Y-axis is:

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Zero

Undefined

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Parallel lines

Non-parallel lines

Perpendicular lines

Coplanar lines

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Line parallel to x - axis

Line parallel to y - axis

Inclined

Both (a) and (b)

The line l is horizontal if and only if slope is equal to:

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0

1

2

undefined

If the inclination of a line lies between ]90°, 180°[, then the slope of line is :

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Positive

Negative

Zero

undefined

The point of intersection of the perpendicular bisectors of a triangle is called:

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Centroid

Ortho-center

Circums-center

In-center

The vertical line y'oy is called:

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x-axis

y-axis

abscissa

Ordinate

The symbol | | is used for:

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Parallel lines

Perpendicular lines

Non-parallel lines

None of these

The point of intersection of internal bisectors of the angles of a triangle is called:

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Centroid

Ortho-centers

Circums-center

In-center

If (x, y) are the coordinate of a point ordered pair is called:

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Abscissa

Ordinate

Coordinate

Ordered pair

Inclination of X-axis or of any line parallel to X-axis is:

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Zero

Undefined

Two non parallel lines intersect each other at:

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1 point

2 points

3 points

4 points

If a straight line is perpendicular to y-axis, then its slope is:

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1

-1

0

undefined

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Line parallel to x-axis

Line parallel to y-axis

Line passing through the origin

Both (a) and (b)

If (x, y) are the coordinates of a point, then the first component of the ordered pair is called:

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Abscissa

Ordinate

Coordinate axes

None of these

If a straight line is perpendicular to x-axis, then its slope is:

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0

1

2

Undefined

For any point (x, y) on x-axis:

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y = 1

y = 0

y = -1

y = 2

ax + by + c = 0 has matrix from as:

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|ax + by| = |-c|

[ax + by ] = [c]

[ax - by] = [-c]

The pair of lines of homogeneous second-degree equation ax² + 2hxy + by² = 0 are real and coincident, if:

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h² < ab

h²> ab

h²= ab

None of these

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