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Coordinate geometry Practice Questions & Answers

30 vote

The point P(a,b) is first reflected in origin to P1 and P1 is reflected in y axis to (6,5).The coordinates of point P are

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The point P(a,b) is first reflected in origin to P1 and P1 is reflected in y axis to (6,5).The coordinates of point P are
1). (6,5)
2). (6,-5)
3). (-6,5)
4). (-6,-5)

0 vote

Point Q(-1,b) is the midpoint of segment EF. Co-ordinates of point E are (-4,a) and point F are (2,0). What is the value of a and b?

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Point Q(-1,b) is the midpoint of segment EF. Co-ordinates of point E are (-4,a) and point F are (2,0). What is the value of a and b?
1). a = 2; b = 1
2). a = -2; b = -1
3). a = -4; b = -8
4). a = 4; b = 8

0 vote

Reflection of the point (­1,4) in the x­axis is

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Reflection of the point (­1,4) in the x­axis is
1). (1,4)
2). (1,-­4)
3). (­-1,4)
4). (­-1,-­4)

0 vote

What are the co­ordinates of the centroid of a triangle, whose vertices are A(-­2,-­5), B(4,-­4) and C(7,3)?

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What are the co­ordinates of the centroid of a triangle, whose vertices are A(-­2,-­5), B(4,-­4) and C(7,3)?
1). (4,­-3)
2). (­-1,0)
3). (­-3,­-3)
4). (3,­-2)

0 vote

Reflection of the point (4,-5) in the y-axis is

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Reflection of the point (4,-5) in the y-axis is
1). (4,5)
2). (-4,-5)
3). (4,-5)
4). (-4,5)