Font size
Worksheetslinear equation in two variables class x
Total questions: 128
Worksheet time: 4hrs 53mins
On solving x+y25−x−y3=1, and x+y40+x−y2=5 , we get
x=8, y=6
x=4, y=6
x=6, y=−4
None of these
Solve 2x+3y=11 and 2x−4y=−24 and hence find the value of 'm' for which y=mx+3
m=1
m=2
m=−1
m=−2
The path of a train A is given by the equation x+2y−4=0 and the path of another train B is given by the equation 2x+4y−12=0 . Will the paths cross ? Solve by the method of substitution.
x=2, y=3
x=−2, y=3
x=−2, y=−3
None of these
The equations 2x−3y+5=0 and 6y−4x=10 , when solved simultaneously, have :
only one solution
no solution
only two solution
infinite solution
For what values of k will the following pair of linear equations have infinitely many solutions ? kx+3y−(k−3)=0 and 12x+ky−k=0
k=−4
k=6
k=−3
k=2
What is the solution to a system of equations?
The point that the equations have in common.
The point where the two lines intersect.
All of the above.
The pair of equations ax+2y=7 and 3x+by=16 represent parallel lines if :
a=b
2a−3b=0
3a=2b
ab=6
Solution of the system of equations 2x−5y=0 and 5x+2y=0 is
x=5, y=2
x=−2, y=5
x=0, y=0
x=2, y=5
The pair of equations x=2 and y=3 graphically represents lines which are :
parallel
intersecting at (2, 3 )
intersecting at ( 3, 2 )
coincident
If a pair of linear equations is consistent, then the lines will be
always parallel
intersecting and coincident
always intersecting
always coincident
Any point on the line x = y is of the form
(k, -k)
(0, k)
(k, 0)
(k, k)
The linear equation 3x-11y=10 has
Infinitely many solutions
1 Solution
Two solutions
Unique solution
Point (3, 4) lies on the graph of the equation 3y = kx + 7. The value of k is
4/3
3
7/3
5/3
The equation y = 2 in two variables can be written as
0 .x + 1 .y = 2
1. x + 0. y = 2
1. x + 0 .y = 0
Solution of the equation 3x – 5 = 2x + 1is
5
7
4
6
x = 4, y=3 is a solution of the linear equation
2x + y = 17
2x + 3y = 17
x + 3y = 17
2x+2y=17
If the point (3, 4) lies on the graph of the equation 3y = ax + 7, then the value of a is
3/5
5/3
3/7
4/6
The graph of linear equation x+2y = 2, cuts the y-axis at
(2,0)
(0,2)
(0,1)
(1,1)
If 2x + 4 = x - 5, then x = ______
9
-9
1
-1
the difference between two number is 40.
form a linear equation from above situation.
x - y = 40
x + y =40
x = 40y
y = 40x
x +4y=10
identify whether the above equation are linear equation with two variables
yes
no
not sure
Find the solution of the given simultaneous equations.
3x−2y=4
(2, 1)
(−37,−323)
(-7, -17)
(7, 4)
no solution
Find the solution of the given simultaneous equation.
3x+2y=3
5x+3y=4
(-1,3)
(17, -12)
(21,43)
(-6, 3)
Linear equation in one variable has
Only one term with variable
One variable with power >1
More than one variable with any power
One variable with power 1
The value of x in 4x-7=17 is
0.6
6
5
6.6
How many variables should be present in the given linear equation in able to consider as an example of Linear Equation in Two Variables?
Four Different Variables
Two Identical Variables
Four Identical Variables
Two Different Variables
Which of the following is an example of Linear equation in Two Variables?
x2 - 25
a3 - 27
4x = 2y - 9
x2 + 3x + 2
x + 20 = 100
x = 80
x = -5
x = 20
x = -80
Solve for x:
x = 20
x = 7
x = 10
x = 3
If 2x+3y = 12 and 3x-2y=5 then
x = 2, y = 3
x = 2, y = -3
x = 3, y = 2
x = 3, y = -2
If a pair of linear equations is consistent then their graph lines will be_______
Parallel
Always coincident.
Always intersecting.
Intersecting or coincident.
The pair of equation x+2y+5=0 and -3x-6y+1=0 has
A unique solution
Exactly two solutions
Infinitely many solutions
No solution.
If the system of equations kx - 5y = 2, 6x + 2y = 7 has no solution, then k =___
-10
-5
-6
-15
The value of k for which the system of equations 3x+5y=0 and kx+10y=0 have infinitely many solutions is _______
0
2
6
8
If x+y=14 and x-y=4 then the values of x and y are_________
x=4 and y = 5
x = 9 and y = 7
x = -6 and y = 5
x = 9 and y = 5
The system of equations kx - y = 2 and 6x - 2y = 3 has a unique solution only when k =_______
0
not equal to 0
3
not equal to 3
If the lines given by 3x+2ky =2 and 2x+5y+1= 0 are parallel then the value of k is _______
4−5
52
23
415
The graphs of the equations 2x+3y-2=0 and x-2y-8=0 are two lines which are_______
Coincident
Parallel
Intersecting exactly at one point
Perpendicular to each other
If a system of equations has no solution, what does the graph look like?
intersecting lines
parallel lines
Perpendicular lines
coincident lines
29x+37y=103 and 37x+29y = 95 then
x=1, y=2
x=2, y=1
x=3, y=2
x=2, y=3
What is pair of linear equations in two variables?
a set of two or more linear equations in the same two variables
a polynomial with three terms
set of two linear equations in same two variables
A solution to a
system of linear equations
with two variables
is written as an ordered pair
( x, y ).
True
False
For what values of a and b does the following pair of equations have an infinite numbers of solutions. 2x+3y=7, a(x+y)-b(x-y)=3a+b-2
a = 5, b = - 1
a = - 5, b = 5
a = 5, b = 1
a = 1, b = 5
For what value of k will the following equations have infinitely many solutions? 2x-3y=7, (k+1) x+ (1-2k) y=5k-4
1
2
3
5
For what value of k will pair of equations have no solution? 3x+y=1 , (2k-1)x+(k-1)y=2k+1
1
2
3
4
If 2x+3y = 12 and 3x-2y=5 then
x = 2, y = 3
x = 2, y = -3
x = 3, y = 2
x = 3, y = -2
Solve
6x + y = + 5
-2x + y = 5
Find the value of y.
(a)
Solve
y = -3x + 11
5x + y = 21
Find the value of x
(a)
Solve
3x + y = 1
y = 4x + 1y
Find the value of y.
(a)
Solve by elimination:
4x+9y=28
-4x-y=-28
Find the value of x
(a)
Solve the system by multiplication.
3x + 2y = 16
7x + y = 19
x= -2 , y= 5
x= -2 , y= -5
x= 2 , y= - 5
x= 2 , y= 5
Does the following system have One Solution, No Solution, or Infinite Solutions.
y = 4x + 8
y = -5x + 3
One solution
No solution
Infinite solution
many solutions
Parallel lines have the same slope with a different y-intercept and how many solutions?
One
No
Infinite
Many
Shreyas graphed two lines in order to find the solution to a given system of equations.Then the solution is......
(-1, 4)
(1, -4)
(-4, 1)
(4, -1)
Solve for x and y
y = 2x + 1
y = 4x - 1
(1,3)
(-1,-3)
(-1,3)
(3,1)
3x + 2y = 16
7x + y = 19
8x + 4y = 12
y = -2x + 3
Determine if (4, 1) is a solution for the system of equations.
y = -x + 5
y = 2x - 7
yes
no
do not know
may be
Anjali finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes. How long does it take her to do a haircut?
3x + 2y = 315
2x + 4y = 450
45 minutes
90 minutes
60 minutes
30 minutes
Solve by the
Elimination method:
3x + y = -2
2x + y = 3
(-5, 13)
(13, 5)
(5, -13)
(-13,5)
Solve the system by elimination.
−4x − 4y = 0
4x + 4y = 0
(−6, −4)
Infinite number of solutions
(−6, 10)
(6, 4)
y = -4x + 5
y = 3x - 16
Which system of equations does NOT have the same solution as the system below?
−x +4y =−3
30x +50 y =100
−10x + 40y =−30
18x +30y =60
−6x +24y =−18
6x + 10y = 20
−3x +12y =−3
−15x −25y = −50
−21x+2y =−23
How many solutions are there to the following system of equations?
One Solution
No Solution
Infinite Solutions
Many solutions
How do we know if a system of equations has no solution?
The lines are not in slope-intercept form (y=mx+b)
The lines have the same slope and y-intercept
The lines are perpendicular
The lines are parallel
Which of these systems has an infinite number of solutions?
y=3x+4
−12x+4y=16
x+2y=10
2x+4y=10
y=2x+6
4x−2y=8
Is (-1,5) a solution to this system of equations?
x+y=4
x=−1
y=−x+4
y=−51x
y=5
y=x−6
y=x+6
x=2y+7
What will be the solution of these equations ax+by=a-b, bx-ay=a+b
x=1, y=2
x=2,y=-1
x=-2, y=-2
x=1, y=-1
If x=a, y=b is the solution of the pair of equation x-y=2 and x+y=4 then what will be value of a and b
2,1
3,1
4,6
1,2
1. What is the solution for equations below?
y = 3x + 2
y = 5x
x=2, y=8
x=5, y=17
x=1, y=5
x= -2, y= -4
The pair of equation x = – 4 and y = – 5 graphically represents lines which are
intersecting at (-5, –4)
intersecting at (-4, –5)
intersecting at (5, 4)
intersecting at (4, 5)
The graph of the linear equation 2x +3y = 6 cuts the y-axis at the point:
(2, 0)
(0, 3)
(3, 0)
(0, 2)
If x = a, y = b is the solution of the equations x + y = 5 and 2x – 3y = 4, then the values of a and b are respectively
6, -1
2, 3
1,4
19/5, 6/5
The graph of x = -2 is a line parallel to the
x-axis
y-axis
both x-axis and y-axis
none of these
If in the equation x + 2y = 10, the value of y is 6, then the value of x will be
-2
2
3
-3
The pair of equations x = a and y = b graphically represents lines which are
parallel
intersecting at (b,a)
coincident
intersecting at (a,b)
Find the value of k, if x = 1, y = 2 is a solution of the equation 2x + 3y = k.
5
6
7
8
Point (3, 4) lies on the graph of the equation 3y = kx + 7. The value of k is:
4/3
5/3
3
7/3
The graph of x = 3 is a line:
Parallel to the x-axis at a distance of 3 units from the origin
Parallel to the y-axis at a distance of 3 units from the origin
Makes an intercept 3 on the x-axis
Makes an intercept 3 on the y-axis
What is the intersection of the x- axis and y-axis in the coordinate plane?
origin
ordinates
coordinates axes
abscissa
Which of these points lie on Quadrant III?
(6,-3)
(5,10)
(-2,-8)
(-7,4)
On which quadrant does (-1, 5) lie?
I
II
III
IV
y=x-9
y=-4x
x=7
y=1.8
x=7.2
y=1.8
x=1.8
y=-7.2
x=1.88
y=7.2
Solve and find the value of k for the following simultaneous equations:
3h − k = 2
2h + k = 8
2
4
7
10
8x + 2y = -10
x = -3
Find the solution of the given simultaneous equations.
3x−2y=4
(2, 1)
(−37,−323)
(-7, -17)
(7, 4)
no solution
Find the solution of the given simultaneous equation.
3x+2y=3
5x+3y=4
(-1,3)
(17, -12)
(21,43)
(-6, 3)
Solve simultaneously.
y=−x−5
(4, -9)
(-2, -3)
(7, 3)
(-4, -7)
If 4x=17 is a linear equation in one variable, then 4x+0y=17 is a linear equation in two variables.
True
False
Can't say
Its true as 17 is a prime number
The line y=kx is
Passing through origin
Passing through (1,k)
Passing through (k,k)
Passing through (k,k2)
The value of k if x=3 , y=2 is a solution of the equation 5x+2y=k
10
12
16
18
If x=2 and y=3 are two lines in a cartesian plane, then
Both the lines are parallel to x-axis.
Both the lines are parallel to y-axis.
x=2 is a line parallel to y-axis and y=3 is a line parallel to x-axis.
both the lines coincide at (2,3)
Which one of the following is/are a solution/s of the equation x+2y=6
(2,2)
(0,3)
(6,0)
(4,1)
5x-4y + 8=0
7x+6y-9=0
This pair of linear equations is
Consistent
Inconsistent
Intersecting lines
No solution
Unique solution
Infinitely many solutions
Two solutions
5x - 3y = 11
-10 X + 6 Y = - 22
The pair of linear equations are
Intersecting
Parallel
Concident
None of them
Purv what value of k the following pair of linear equations have infinitely many solutions
kx+ 3y- (k - 3) = 0
12 x + ky-k = 0
K=6
K≠3
k=9
k=3
