Subjects
Maths CBSE Live product
Class 9 (2026-27)
Introduction to Linear Polynomials
Patterns to Linear Graphs

10. CBQ - Mobile data plan

Question:

4 m.

A mobile data company charges a base fare of \(Rs.\) 100 and a cost of \(Rs.\) 3 per \(GB\).

1. What is the cost for \(0 \ GB\)?

106
100
103
3

2. For every increase in value of \(x\), the value of \(y\) increases by \(Rs.\)

100
103
3
106

3. The linear equation is

$y = 3 x - 100$
$y = - 3 x + 100$
$y = - 3 x - 100$
$y = 3 x + 100$

4. The slope is

−3
100
3
−100

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