The journey starts with a fixed cost of 100 rupees. The cost increases by 60 rupees for every kilometre travelled. For distances from 0 to 10 km, the costs form a linear growth pattern with constant increase.
The cost of a journey is given by the linear function C(d) = 100 + 60d, where C indicates total cost in rupees and d the distance travelled in km. Let us make a table of values for d varying from 0 to 10 km and show how the cost increases for every km.
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The linear function C(d) = 100 + 60d represents the total journey cost, where d is the distance travelled in kilometres. The fixed charge is 100 rupees and the cost increases by 60 rupees for every kilometre. For example, when d equals 0, the cost is 100 rupees and when d equals 1, the cost becomes 160 rupees. The pattern continues with a constant increase of 60 rupees each time. Therefore, this function represents linear growth because the increase remains fixed.
For more NCERT Solutions for Class 9 Maths Ganita Manjari Chapter 2 Introduction to Linear Polynomials (2026-27):
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-2/