alleryExpress 4 x - 5 y + 20 = 0 with y as the dependent variable.
Ay = (4 x + 20) / 5
By = (5 x - 20) / 4
Cy = (4 x - 20) / 5
Dy = 4 x - 5 + 20
Answer & Solution
Correct answer: A. y = (4 x + 20) / 5
1. Start with 4 x - 5 y + 20 = 0.
2. Move y terms: 5 y = 4 x + 20.
3. Divide by 5: y = (4 x + 20)/5.
4. Matches Example given in the chapter.
_Source: Selina Concise Mathematics Class 9, Ch 26 Co-ordinate Geometry (Mistral OCR'd PDF), Example in section 26.2_
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