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)
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)
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)
Answer: C
4. The equation of circle with centre (1 , 2) and radius 4 cm is :
(a) xยฒ + yยฒ + 2x – 4y = 16
(b) xยฒ + yยฒ – 2x + 4y = 16
(c) xยฒ + yยฒ + 2x – 4y = 11
(d) xยฒ + yยฒ – 2x – 4y = 11
Answer: D
5. Find the equation o circle whose centre is (2 ,3) and radius is 5 .
(a) xยฒ + yยฒ – 4x – 6y = 12
(b) xยฒ + yยฒ – 2x + 4y = 16
(c) xยฒ + yยฒ + 4x – 6y = 12
(d) xยฒ + yยฒ – 2x + 4y = 11
Answer: A
6. If xยฒ + yยฒ + 6x + 8y + 11 = 0 is the equation of a circle , find its centre and radius .
(a) (-3 , -4) , โ14
(b) (-5 , 3) , 8
(c) (5 , 9) , 7
(d) (5 , 3) , 9
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
ย 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
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
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
Answer: D
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