JY 1217
1. Which of the following figures represents the graph of y = ax + b where a < 0 and b
< 0?
A.
B.
C.
D.
2.
y
B
A(3,6)
C(7,4)
O
x
In the figure, OABC is a parallelogram. The coordinates of A and C are (3 , 6) and (7 , 4)
respectively. Find the equation of OB.
A.
x  y=0
B.
C.
D.
x  2y = 0
2x  y = 0
2x + y = 0
3. If the straight lines
A.
2 or –2.
B.
1
2
or

1
.
2
x
 4 y  3 and y + px + q = 0 are parallel, then p =
p
C.
D.
1
.
2
1 or –1.
2 or
4.
In the figure, the equations of the straight lines L1 and L2 are x + ay = b and cx + y = d
respectively. Which of the following are true?
I.
II.
III.
IV.
a>0
ac > 1
b > ad
d > bc
A.
B.
C.
D.
I, II and III only
I, II and IV only
I, III and IV only
II, III and IV only
5.
In the figure, ABCD is a square. The equations of AB and AD are 2x + 7y – 29 = 0 and
7x – 2y + 31 = 0 respectively. The coordinates of B are (4 , 3). Find the area of square
ABCD.
A. 34
B. 53
C. 65
D.
113
6. The coordinates of two points A and B are (–1 , 6) and (1 , –2) respectively. If P is a
point lying on the straight line 2x + y + 7 = 0 such that AP = PB, find the coordinates
of P.
A. (–4 , 1)
B.
C.
D.
(–3.5 , 0)
(0 , –7)
(1 , –4)
7. If the maximum value of y = 4x2 + 16x + d is 15, find the value of d.
A. 15
B. 12
C. 10
D.
1
8. The figure shows the graph of y = 2x2 + 8x + 5. Find the vertex of the graph.
A.
B.
C.
D.
(1 , 13)
(2 , 13)
(2 , 14)
(1 , 14)