Which number from 16, 21, 20, -20 satisfy the equation x+1/ 3 = 7
16
21
20
-20
If 2x + 3y = 7. Then the value of C in equation of the form ax + by = c = 0 is
7
-7
2
3
Express y in term of x in the equation 5y -3x - 10 = 0.
The value of y if 30 = 6 ( 8 + y ) is
-3
5
-5
The geometrical representation of ax + by + c = 0 is
Straight line
Parabola
Hyperbola
Ethipse
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
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
When 9 is subtracted from a number, 7 is got. Then the number is
8
18
If two linear equations has infinitely many solutions then the lines on the graph.
Intersect at a point
Are parallel
Coincide
None of these
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
