show graphically that system of equations ` 2x + y = 6, 6x + 3y = 18`. has infinitely many solutions.

Show that the system of equations 4 x + 6y = 7, 12 x + 18 y = 21 has infinitely many solutions.

Evaluate for what value of k the system of equations 2x - y = 5 and 6x + ky = 15 has infinitely many solutions.

Show graphically that the system of equations 2x + 4y = 10 and 3x + 6y = 12 has no solution.

Show graphically that the system of equations 2x + 4y = 10 and 3x + 6y = 12 has no solution.

Show that the system of equations. " " 2 x - 3y = 5, 6x - 9y = 15 . has an infinite number of solutions.

Find the value of k for which the system of equations kx - y = 2, 6x - 2y = 4 has infinitely many solutions

Find the value of k , for which the system of equation x-ky = 2 and 3x + 6y = 6 , has infinitely many solutions .

For what values of p and q, the system of equations 2x + py + 6z= 8, x + 2y + qz = 5, x + y + 3z = 4 has infinitely many solutions.

Show that the system of equations " " 6x + 5y = 11, 9x + ( 15) /(2) y = 21 . has no solution

Show graphically that the system of linear equations x - y = 8, 3x - 3y = 16 is inconsisten, i.e., has no solution.