# Introduction to Graphs| Worksheet Solutions| Class 8

Worksheet solutions for chapter: Introduction to Graphs for class 8 are provided below.

(1) Draw the graph with given data.

 Time Week 1 Week 2 Week 3 Week 4 Performance in math (%) 65 70 75 85

Ans-

The graph is presented below:- (2) Show the coordinates (0,7) and (7,0) on graph.

Ans-

The required coordinates are presented below:- (3)Find the coordinates of given points with the help of graph.

. Ans- Coordinates of point A (4, 3)

Coordinates of point B (2, 3)

Coordinates of point C (2, 6)

Coordinates of point D (4, 7)

(4) Draw the graph for the following values.

 Number of copies 2 4 6 8 Cost (Rs) 20 40 60 70

(i) What is the cost of 5 copies?

(ii) Is it a linear graph?

Ans- (i) The cost of 5 copies is Rs 50.

(ii) Yes, it is a linear graph.

(5) Find the answers of questions from the given graph. (i) distance covered in 3.5 hour.

(ii) Is graph pass from the origin?

Ans- (i)Distance covered in 3.5 hour is 105 km.

(ii) No, graph does not pass through origin.

(6) In coordinate(4, 5), 4 is a

(i) x – coordinate

(ii) y – coordinate

Ans-

4 is a x – coordinate.

(7) The graph which displays data that changes continuously over period of time and points represented particular data is joined by a straight line is

(i) bar graph

(ii) line graph

Ans-

(ii) Line graph

(8)Draw speed – time line graph by given data.

 Distance (km) 50 100 150 200 Time (hour) 1 2 3 4

Use graph to find speed in 2.5 hours?

Ans-  (9) Point A is placed on graph. Find, if coordinates of the point A is (3, 4). Ans-

Coordinates of point A are (3, 4) because when we move 3 units on x axis and move up 4 units from there, we get point A.

(10) Fill in the blanks:-

(i) A ____ graph is used to compare parts of a whole.

(ii) ____ and ____ coordinates are necessary to fix a point on the graph.

(iii) A _____ is a bar graph that shows data in intervals

Ans-

(i) A pie graph is used to compare parts of a whole.

(ii) x and y coordinates are necessary to fix a point on the graph.

(iii) A histogram is a bar graph that shows data in intervals.

Helping Topics

Introduction to Graphs

NCERT Solutions Class 8