7. (a) Tanzania Institute of Education (b) y 4 (0, 3) 3 y=- 2x + 3 2 3 (3, 1) 1 -2 -1 0 1 2 3 4 5 x -1 Mathematics Form One -2 199 25/10/2024 09:52:28 Mathematics form 1.indd 199 Mathematics form 1.indd 199 25/10/2024 09:52:28