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
Express y in term of x in the equation 5y -3x - 10 = 0.
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
Solution of x - y = 3 and x + y = 5 is
x = 4, y = 1
x = 4, y = -1
x = 1, y = 4
x = 1, y = -4
A linear equation in two variables has
A unique solution
No solution
Two solutions
Infinitely many solutions
If the points ( 4, 1 ) lies on the line x - ky = 2, then the value of k is
1
-1
2
-2
Which number from 16, 21, 20, -20 satisfy the equation x+1/ 3 = 7
16
21
20
-20
The standard form of a linear equation in two variables x and y is
ax + by + c = 0
ax = C
by = c
x + y + c = 0
A point on the line x + y = 0 is
( 1, 1 )
( 1, -1 )
( 0, 1 )
( 1, 0 )
If two linear equations has infinitely many solutions then the lines on the graph.
Intersect at a point
Are parallel
Coincide
None of these
