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Introduction to Linear Polynomials — Practice Quiz

CBSE · Class 9 · Mathematics

Try a 4-question quiz on Introduction to Linear Polynomials for CBSE Class 9 Mathematics: tap an answer to check it and see why.

105 questions80 flashcards10 formulas & key relations5 concepts

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Quick Quiz: Introduction to Linear Polynomials

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1

A wire of length 20 cm is bent into a rectangle. If the length is 7 cm, find the area of the rectangle in square centimetres.

2

A student has ₹500 in a savings account and receives ₹150 every month as pocket money. How much money will she have at the end of the 8th month?

3

A rally starts with 120 members. Each hour, 9 members drop out. How many members remain after 7 hours?

4

A telecommunication bill follows y = 20x + 150, where x is the GB of data used. What is the bill for 18 GB, and how much more is it than the fixed charge?

105 Questions·
multiple choicemultiple correctnumerical

Sample Questions

1multiple choice
3 marks

The auto-rickshaw fare starts at ₹25 for the first 2 km and then increases by ₹15 per km. What is the fare for a journey of 14 km?

Show answer

₹205

Step 1: Use the formula 25 + 15 × (n - 2). Step 2: Substitute n = 14. Step 3: 14 - 2 = 12. Step 4: 15 × 12 = 180. Step 5: 25 + 180 = 205. So the fare is ₹205.

2multiple choice
3 marks

Bela has ₹100 pocket money and spends ₹5 every day. On which day will the amount left be ₹25?

Show answer

Day 15

Step 1: The amount left after n days is 100 - 5n. Step 2: Set 100 - 5n = 25. Step 3: 5n = 75. Step 4: n = 15. So the amount left is ₹25 on the 15th day.

3multiple choice
3 marks

The line y = 2x + 5 is used. What is the y-value when x = 6, and what is the y-intercept?

Show answer

y = 17 and y-intercept = 5

Step 1: Substitute x = 6 in y = 2x + 5. Step 2: y = 2 × 6 + 5 = 12 + 5 = 17. Step 3: In y = ax + b, the y-intercept is b. Step 4: Here b = 5. So y = 17 and the y-intercept is 5.

4multiple choice
3 marks

Two numbers add up to 64. One number is 10 more than the other. What are the numbers?

Show answer

27 and 37

Step 1: Let the smaller number be x. Step 2: The larger number is x + 10. Step 3: Form the equation x + (x + 10) = 64. Step 4: 2x + 10 = 64, so 2x = 54. Step 5: x = 27. Step 6: The larger number is 37. So the numbers are 27 and 37.

+101 more questions on Introduction to Linear Polynomials (CBSE Class 9 Mathematics)

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Frequently Asked Questions

What are the important topics in Introduction to Linear Polynomials for CBSE Class 9 Mathematics?
Key topics in Introduction to Linear Polynomials include Algebraic expressions and one-variable polynomials, Linear polynomials, linear equations, and input-output form, Linear patterns in sequences and word problems, Linear growth and linear decay. Study these first, then practise questions on each for Class 9 exams.
How many practice questions are there for Introduction to Linear Polynomials?
There are 105 questions on Introduction to Linear Polynomials. Try the 4-question sample quiz on this page first; each answer shows an explanation when you tap it.

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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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