1
JEE Main 2019 (Online) 8th April Evening Slot
+4
-1
If the system of linear equations

x – 2y + kz = 1
2x + y + z = 2
3x – y – kz = 3

has a solution (x,y,z), z $$\ne$$ 0, then (x,y) lies on the straight line whose equation is :
A
4x – 3y – 4 = 0
B
3x – 4y – 1 = 0
C
4x – 3y – 1 = 0
D
3x – 4y – 4 = 0
2
JEE Main 2019 (Online) 8th April Evening Slot
+4
-1
Suppose that the points (h,k), (1,2) and (–3,4) lie on the line L1 . If a line L2 passing through the points (h,k) and (4,3) is perpendicular to L1 , then $$k \over h$$ equals :
A
$${1 \over 3}$$
B
3
C
0
D
-$${1 \over 7}$$
3
JEE Main 2019 (Online) 8th April Morning Slot
+4
-1
A point on the straight line, 3x + 5y = 15 which is equidistant from the coordinate axes will lie only in :
A
1st and 2nd qudratants
B
4th qudratant
C
1st and 2nd and 4th qudratants
D
1st qudratant
4
JEE Main 2019 (Online) 8th April Morning Slot
+4
-1
Let O(0, 0) and A(0, 1) be two fixed points. Then the locus of a point P such that the perimeter of $$\Delta$$AOP is 4, is :
A
9x2 + 8y2 – 8y = 16
B
8x2 – 9y2 + 9y = 18
C
8x2 + 9y2 – 9y = 18
D
9x2 – 8y2 + 8y = 16
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