The “y=mx+c to success” Gr 10&11 Part 1 and Part 2 mathematics textbooks forms a duology and were developed especially to cover the syllabus of the Cambridge international IGCSE Ordinary-Level final examination phase. This also forms the entry level into AS-Level mathematics. This duology of textbooks begins by revising the Cambridge Lower Secondary level gr.8 and gr.9 syllabi focusing on ensuring a comprehensive understanding of basic mathematical concepts before introducing more advanced topics with an particular emphasis on accommodating learners with diverse abilities and providing challenging material for students preparing for AS-Level mathematics.