Which of the following points lie on the x-axis?
       A (1, 1), B (1, 0), C (0, 1), D (0, 0), E (-1, 0), F (0, -1), G (4, 0), H (0, 7)

2 Name the quadrant in which the point lies:
       (a) A (1, 1)
       (b) B (2, 4)
       (c) C (-3, -10)
       (d) D (-1, 2)
       (e) E (1, -1)
       (f) F (-2, -4)
       (g) G (-3, 10)
       (h) H (1, -2) 3

In the following equations, verify whether the given value of the variable is a solution of  the equation:  
(i) x + 4 = 2x ; x = 4                       
(ii) y – 7 = 3y + 8 ; y = 3       
(iii) 3u + 2 = 2u + 7 ; u = 5
(iv) 2x – 3 = x /2 – 2 ; x = √2        
(v) (5/2)x + 3 = 21/2 ; x = 3
(vi) 24 – 3(u – 2) = u + 8 ; u = -1  
(vii) (x – 2) + (x + 3 ) = x + 8 ; x = 0.

5 Solve the following equations:
(i) 3x + 3 = 15                    
(ii) 2y + 7 = 19
(iii) x + 3 =      
(iv) √3x – 2 = 2√3 + 4
(v) 8u + = 3u +7         
(vi) (√5 + 5)x + 4 = 2√5 + 8
(vii) 2x – (3x – 4) = 3x – 5    
(viii) 2x + √2 = 3x – 4 – 3√2 6 Which of the following points lie on the x-axis?
        (A) (3, 4)
       (B) (7, 0)
       (C) (0, 8)
       (D) (-9, 0)
       (E)
       (F) (-3, -5)