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 of the form ax + by + c = 0, where a, b and c are real numbers, such that a and b are not both zero, is called a in two variables.

A linear equation in two variables has many solutions.

The graph of every linear equation in two variables is a .

x = 0 is the equation of the

y = 0 is the equation of the .

The graph of x = a is a straight line parallel to the .

The graph of y = a is a straight line parallel to the .

An equation of the type y = mx represents a line passing through the .

Every point on the graph of a linear equation in two variables is a solution of the .

The value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k is .

The value of k, if x = 1, y = 3 is a solution of the equation 4x - y = k is .

The value of k, if x = 3, y = 1 is a solution of the equation kx + 3y = 12 is .

The system of equations x+2y=3 and 3x+6y=9 has solution.

The system of equations 2x+y−2=0 and 4x+2y−4=0 has solutions.

If x+y−5=0 and 2x+y−9=0, then 4x²+y²+xy is equal to .