PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
An equation which can be put in the form ax + by + c = 0,where a, b and c are real numbers, and a and b are not both zero, is called a in two variables x and y.

Two linear equations in the same two variables are called a in two variables.

A pair of linear equations which has no solution, is called an pair of linear equations.

A pair of linear equations in two variables, which has a solution, is called a pair of linear equations.

A pair of linear equations which are equivalent has many distinct common solutions. Such a pair is called a pair of linear equations in two variables.

If the lines intersect at a point, then that point gives the solution of the two equations.

If the lines coincide, then there are solutions — each point on the line being a solution.

If the lines are parallel, then the pair of equations has solution.

(a₁⁄a₂)≠(b₁⁄b₂)-In this case, the pair of linear equations is .

(a₁⁄a₂)=(b₁⁄b₂)≠(c₁/c₂)-: In this case, the pair of linear equations is .

(a₁⁄a₂)=(b₁⁄b₂)=(c₁/c₂) In this case, the pair of linear equations is .

If a pair of linear equations is consistent then the lines will be .

If a pair of linear equations is inconsistent then the lines will be .

The pair of equations x = 2 and y = - 2 has solution.