For C = 0, F = (9/5)(0) + 32 = 32°F. For F = 0, 0 = (9/5)C + 32, giving C = −32 × (5/9) = −160/9 ≈ −17.78°C.
Ganita Manjari Part 2 Class 9 Maths chapter 13 question answer
Class 9 Maths Ganita Manjari Part 2 chapter 13 Two Variables, One Line solutions
When C = 0°C, substituting into the linear equation gives F = (9/5)(0) + 32 = 32°F. When F = 0°F, the relation becomes 0 = (9/5)C + 32, which leads to (9/5)C = −32. Multiplying by 5 and dividing by 9 gives C = −160/9°C or approximately −17.78°C.
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