Draw a graph for the following.
(i) Is it a linear graph?

(ii) Is it a linear graph?

Solution:

A line graph which is a whole unbroken line is called a linear graph.

(i) Choosing a suitable scale,

For x-axis, 2 unit = 1 cm and for y-axis, 2 unit = 5 cm

We can represent the side of a square on the x-axis and the perimeter of that square on the y-axis. A graph of the given data is drawn as follows.

It is a linear graph.

(ii) Choosing a suitable scale,

For x-axis, 2unit = 1 cm and for y-axis, 2 unit = 5 cm

We can represent the side of a square on the x-axis and the area of that square on the y-axis. A graph of the given data is as follows.

It is not a linear graph.

☛ Check: NCERT Solutions for Class 8 Maths Chapter 15

Video Solution:

Draw a graph for the following. (i) Is it a linear graph? (ii) Is it a linear graph?

Class 8 Maths NCERT Solutions Chapter 15 Exercise 15.3 Question 2

Summary:

From the given data,(i) Linear graph (ii) Not a linear graph

☛ Related Questions:

• Write the coordinates of the vertices of each of these adjoining figures.
• State whether True or False. Correct that are false. (i) A point whose x-coordinate is zero and y-coordinate is non-zero will lie on the y-axis. (ii) A point whose y-coordinate is zero and x-coordinate is 5 will lie on the y-axis. (iii) The coordinates of the origin are (0,0).
• Draw the graphs for the following tables of values, with suitable scales on the axes. (a) Cost of apples (b)Distance travelled by a car (i) How much distance did the car cover during the period 7.30 a.m.to 8 a.m.? (ii) What was the time when the car had covered a distance of 100 km since its start? (c) Interest on deposits for a year: (i) Does the graph pass through the origin? (ii) Use the graph to find the interest on Rs 2500 for a year: To get an interest of Rs 280 per year, how much money should be deposited?