Co-Ordinate Geometry MCQ Set 7

CO-ORDINATE GEOMETRY MCQ SET 7

1. Find the reflection of point A(5 , 4) on x-axis .

(a) (5 , 4)

(b) (5 , -4)

(c) (4 , 5)

(d) (-4 , 5)

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Answer: B

2. Find the reflection of point A(5 , 4) on y-axis .

(a) (5 , 4)

(b) (5 , -4)

(c) (-5 , 4)

(d) (-4 , 5)

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Answer: C

3. What is the reflection of the point (5 , -3) in the line Y = 3?

(a) (5 , -6)

(b) (-5 , 3)

(c) (5 , 9)

(d) (5 , 3)

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Answer: C

4. The equation of circle with centre (1 , 2) and radius 4 cm is :

(a) x² + y² + 2x – 4y = 16

(b) x² + y² – 2x + 4y = 16

(c) x² + y² + 2x – 4y = 11

(d) x² + y² – 2x – 4y = 11

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Answer: D

5. Find the equation o circle whose centre is (2 ,3) and radius is 5 .

(a) x² + y² – 4x – 6y = 12

(b) x² + y² – 2x + 4y = 16

(c) x² + y² + 4x – 6y = 12

(d) x² + y² – 2x + 4y = 11

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Answer: A

6. If x² + y² + 6x + 8y + 11 = 0 is the equation of a circle , find its centre and radius .

(a) (-3 , -4) , √14

(b) (-5 , 3) , 8

(c) (5 , 9) , 7

(d) (5 , 3) , 9

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Answer: A

7. If two lines 3x + 4y = 16 and 6x + ky = 19 having unique solution then find the value of k .

(a) 19/3

(b) 19/4

(c) 4/19

(d) 3/19

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 Answer: B

8. For what value of m will the system of equation 17x + my + 102 = 0 and 23x + 299y + 139 = 0 have infinite number of solutions?

(a) 221

(b) 223

(c) 220

(d) 219

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Answer: A

9. For what value of q does the system of equations 38x + qy + 171 = 0 and 46x + 414y + 207 = 0 have infinite number of solutions?

(a) 380

(b) 345

(c) 342

(d) 350

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Answer: C

10. For which of the following values of the system of equations 18x – 72y + 13 = 0 and 7x – my – 17 = 0 will have no solution?

(a) 9

(b) 12

(c) 24

(d) 28

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Answer: D