1. How many linear equation in x and y can be satisfied by x = 1 and y = 2?

2. Solution of linear equation 2x + 0.y + 9 = 0 is

3. If (3, 2) is the solution 3x - ky = 5, then k equals of the equation

4. Cost of book (x) exceeds twice the cost of pen (y) by Rs 10. This statement can be expressed as linear equation.

5. If x represents the age of father and y represents the present age of the son, then the statement for ‘present age of father is 5 more than 6 times the age of the son’ in terms of mathematical equation is

6. Equation of a line passing through origin is

7. The condition that the equation ax + by + c = 0 represents a linear equation in two variables is

8. The maximum number of points that lie on the graph of a linear equation in two variables is.

9. Straight line passing through the points (-1, 1), (0, 0) and (1, -1) has equation

10. The value of y at x = -1 in the equation 5y = 2 is