Solution of x + y = 15, x - y = 5 is
x = 5, y = 10
x = 7, y = 6
x = 10, y = 5
x = 6, y = 7
The line -2x + y - 7 = 0 intersect y - axis at
(0, 7 )
( 7, 0)
( 7, 7 )
( -7, -7 )
If the points ( 4, 1 ) lies on the line x - ky = 2, then the value of k is
1
-1
2
-2
Which of the following equation has x = 2, y = 1 as solution?
2x + 5y = 9
5x + 3y = 14
x + y + 4 = 0
2x + 3y -7 = 8
When 9 is subtracted from a number, 7 is got. Then the number is
8
16
18
Express y in term of x in the equation 5y -3x - 10 = 0.
A linear equation in two variables has
A unique solution
No solution
Two solutions
Infinitely many solutions
If the units and ten's digit of a two digit number are y and x, then the number is
10y + x
10 x + y
x + y
xy
The geometrical representation of ax + by + c = 0 is
Straight line
Parabola
Hyperbola
Ethipse
The line 2x + 3y = 6 cut the x - axis at
(0, 3 )
(3, 0 )
( 0, 0 )
( 3, 3 )
