Class 10 Exam  >  Class 10 Notes  >  Lab Manuals for Class 10  >  Viva Voce: Linear Equations

Viva Voce: Linear Equations | Lab Manuals for Class 10 PDF Download

Q.1. What is the equation of a line parallel to x-axis?

y = a, where a is any constant.


Q.2. If x = 0 and y = 0, where would the point lie on graph?

At origin (0, 0)


Q.3. Is the pair of linear equations 2x + 3y – 9 = 0 and 4x + 6y -18 = 0, consistent?

Here Viva Voce: Linear Equations | Lab Manuals for Class 10
⇒ Given system of equations is consistent and has infinitely many solutions.


Q.4. What does the graph of a linear equation represent?

A straight line


Q.5. If the graphical solutions of two linear equations of two lines intersect in a plane, then what type of the solution do they have?

Unique solution


Q.6. What is the equation of a line parallel to y-axis?

x = b, where b is any constant.


Q.7. What is the condition for inconsistent and consistent solution for the system of linear equations?

Linear equations are

a1x+b1y+c1=0
a2x+b2y+c2=0
Inconsistent solution, Viva Voce: Linear Equations | Lab Manuals for Class 10
Consistent solution,
(i) Viva Voce: Linear Equations | Lab Manuals for Class 10
(ii) Viva Voce: Linear Equations | Lab Manuals for Class 10


Q.8. For what value of p does the pair of linear equations given below has unique solution?
4x + 8 = 0, 2x + 2y + 2 = 0

For unique solution, Viva Voce: Linear Equations | Lab Manuals for Class 10

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