Question # 1

x = 4 is a line:

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Parallel to x - axis

Parallel to y - axis

Perpendicular to y-axis

None of these

The point (5, 8) lies the line 2x - 3y + 6 = 0

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Above

Below

On

None

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If the inclination of the line l lies between ]0°, 90°[, then the slope of l is:

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Positive

Negative

Undefined

None of these

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

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1

2

3

4

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0

2

1

-1

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

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 the directed distances AP and PB have same signs, then their ratio is positive and P is said to divide AB:

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Internally

May be divide

Externally

None of these

Equation of a line parallel to x-axis:

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x = 0

x = y

y = a

x = a

General form of equation of line is:

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ax - by + c = 0

ax + by - c = 0

ax + by + c = 0

ax - by - c = 0

y - y1 = m ( x - x1) is the equation of straight line in:

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Slope-intercept from

Point-slope from

Normal form

Intercepts form

A pair of lines of homogeneous second degree equation ax² + 2hxy + by² = 0 are othogonal, if:

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a - b = 0

a + b = 0

a + b > 0

a - b < 0

If (1, x) is the mid point of the line segment joining the points (1, 2) & (1, 6) then x =

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1

2

3

4

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

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y = 1

y = 0

y = -1

y = 2

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

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y = 0

y = -1

y = 1

x = 0

The point (2, 5) lies the lie 3x - y + 1 = 0

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Above

Below

On

None

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

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Zero

Undefined

The vertical line y'oy is called:

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x-axis

y-axis

abscissa

Ordinate

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Line parallel to x-axis

Line parallel to y-axis

Line passing through the origin

Both (a) and (b)

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