Class 8: Maths Chapter 25 solutions. Complete Class 8 Maths Chapter 25 Notes.
Contents
RS Aggarwal Solutions for Class 8 Maths Chapter 25–Graphs
RS Aggarwal 8th Maths Chapter 25, Class 8 Maths Chapter 25 solutions
Ex 25A Solutions
Question 1.
Solution:
Below is given the graph in which X’OX and YOY’ are the co-ordinate axes intersecting each other at O. Now the. points given have been plotted as shown on the graph.
Ex 25B Solutions
Question 1.
Solution:
(a) y = 3x
By giving some different values to x, we shall get corresponding values of y.
x = 1 then y = 3 x 1 = 3
if x = 2, then y = 3 x 2 = 6
if x = 0, then y = 3 x 0 = 0
Now plotting the points given above, and joining them.
(b) We get a line, From the graph.
(i) When x = 3, then y = 9
(ii) When x = 5, then y = 15
(iii) When x = 6, then y = 18 Ans.
Question 2.
Solution:
(a) P = 4x
By giving some different values to x, we get the corresponding values of y or P
If x = 1, then P = 4 x 1 = 4
if x = 2, then P = 4 x 2 = 8
if x = 0, then P = 4 x 0 = 0
Plot the points (1, 4), (2, 8) and 0, 0) on the graph and join then to get the graph of P = 4x as shown
(b) From the graph we see that
(i) When x = 3, then P = 12
(ii) When x = 4, then P = 16
(iii) When x = 6, then P = 24 Ans.
Question 3.
Solution:
A = x²
giving some values to x, we get corresponding values of y or A
If x = 1, then y or A = (1)² = 1
If x = 2, then y or A = (2)² = 4
If x = 0, then y or A = (0)² = 0
Now plot the point (1, 1), (2, 4), (0, 0) on the graph, and join them to get the graph of A = x2 as shown
(b) From the graph we see that
(i) When x = 2, then A = 4
(ii) When x = 3, then A = 9
(ii) When x = 4 then A = 16 Ans.
Ex 25C
Question 1.
Solution:
Answer = (a)
∵ In point (3, 6), both x and y are positive.
Question 2.
Solution:
Answer = (c)
∵ In point ( – 7, – 1) both x and y are negative.
Question 3.
Solution:
Answer = (d)
∵ In point (2, – 3), x is positive and y is negative.
Question 4.
Solution:
Answer = (b)
∵ In point ( – 4, 1), x is negative and y is positive.
Question 5.
Solution:
Answer = (c)
∵ Abscissa is distance of a point from y- axis
Question 6.
Solution:
Answer = (d)
y = a is a line parallel to x-axis at a distance of ‘a’ units.
Question 7.
Solution:
Answer = (a)
The equation of the line y-axis, is x = 0
RS Aggarwal Solutions for Class 8 Maths Chapter 25: Download PDF
RS Aggarwal Solutions for Class 8 Maths Chapter 25–Graphs
Download PDF: RS Aggarwal Solutions for Class 8 Maths Chapter 25–Graphs PDF
Chapterwise RS Aggarwal Solutions for Class 8 Maths :
- Chapter 1–Rational Numbers
- Chapter 2–Exponents
- Chapter 3–Squares and Square Roots
- Chapter 4–Cubes and Cube Roots
- Chapter 5–Playing with Numbers
- Chapter 6–Operations on Algebraic Expressions
- Chapter 7–Factorisation
- Chapter 8–Linear Equations
- Chapter 9–Percentage
- Chapter 10–Profit and Loss
- Chapter 11–Compound Interest
- Chapter 12–Direct and Inverse Proportion
- Chapter 13–Time and Work
- Chapter 14–Polygons
- Chapter 15–Quadrilaterals
- Chapter 16–Parallelograms
- Chapter 17–Construction of Quadrilaterals
- Chapter 18–Area of a Trapezium and a Polygon
- Chapter 19–Three-Dimensional Figures
- Chapter 20–Volume and Surface Area of Solids
- Chapter 21–Data Handling
- Chapter 22–Constructing and Interpreting Bar Graphs
- Chapter 23–Pie Charts
- Chapter 24–Probability
- Chapter 25–Graphs
About RS Aggarwal Class 8 Book
Investing in an R.S. Aggarwal book will never be of waste since you can use the book to prepare for various competitive exams as well. RS Aggarwal is one of the most prominent books with an endless number of problems. R.S. Aggarwal’s book very neatly explains every derivation, formula, and question in a very consolidated manner. It has tonnes of examples, practice questions, and solutions even for the NCERT questions.
He was born on January 2, 1946 in a village of Delhi. He graduated from Kirori Mal College, University of Delhi. After completing his M.Sc. in Mathematics in 1969, he joined N.A.S. College, Meerut, as a lecturer. In 1976, he was awarded a fellowship for 3 years and joined the University of Delhi for his Ph.D. Thereafter, he was promoted as a reader in N.A.S. College, Meerut. In 1999, he joined M.M.H. College, Ghaziabad, as a reader and took voluntary retirement in 2003. He has authored more than 75 titles ranging from Nursery to M. Sc. He has also written books for competitive examinations right from the clerical grade to the I.A.S. level.
FAQs
Why must I refer to the RS Aggarwal textbook?
RS Aggarwal is one of the most important reference books for high school grades and is recommended to every high school student. The book covers every single topic in detail. It goes in-depth and covers every single aspect of all the mathematics topics and covers both theory and problem-solving. The book is true of great help for every high school student. Solving a majority of the questions from the book can help a lot in understanding topics in detail and in a manner that is very simple to understand. Hence, as a high school student, you must definitely dwell your hands on RS Aggarwal!
Why should you refer to RS Aggarwal textbook solutions on Indcareer?
RS Aggarwal is a book that contains a few of the hardest questions of high school mathematics. Solving them and teaching students how to solve questions of such high difficulty is not the job of any neophyte. For solving such difficult questions and more importantly, teaching the problem-solving methodology to students, an expert teacher is mandatory!
Does IndCareer cover RS Aggarwal Textbook solutions for Class 6-12?
RS Aggarwal is available for grades 6 to 12 and hence our expert teachers have formulated detailed solutions for all the questions of each edition of the textbook. On our website, you’ll be able to find solutions to the RS Aggarwal textbook right from Class 6 to Class 12. You can head to the website and download these solutions for free. All the solutions are available in PDF format and are free to download!