In this page we have *Chapter 15 Important questions for Introduction to Graphs Class 8 Maths*
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The number of electric bulbs manufactured by a factory during five consecutive years is given below.

Years |
2006 |
2007 |
2007 |
2008 |
2009 |

Number of Bulbs(lakh) |
2 |
8.5 |
7.0 |
5 |
1 |

Plot the points on a graph: P(4, 9) Q(6, 0) R(7, 7) S(2, 4)

The number of students in Sandeep coaching institute during last 8 years is given below. Represent this data on the Line graph

Years |
2001 |
2002 |
2003 |
2004 |
2005 |
2006 |
2007 |

Number of Students |
100 |
120 |
95 |
130 |
85 |
160 |
100 |

a) (5,0) lies on x-axis

b) (0,1) lies on x-axis

c) (0,0) is the origin

d) (4,4) is equal distance from both the x-axis and y-axis

The number of trees planted by Government in different years is given below.

Year |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |

Number of Trees to be Planted |
150 |
220 |
350 |
400 |
300 |
380 |

a) what time temperature was maximum

b) What is the temperature at 6 PM

c) What is the temperature difference between time 6:00 AM and 6:00 PM

Draw the points (1, 4) and (4, 1). Do they represent the same point?

What were the sales in

(i) 2012

(ii) 2016

(iii)2007

(iv) 2014

(b) Compute the difference between the sales in 2012 and 2016.

(c) In which year was there the greatest difference between the sales as compared to its previous year?

The average monthly attendance of a class is given.

Month |
July |
Aug |
Sep |
Oct |
Nov |
Dec |
Jan |
Feb |

Attendance |
40 |
45 |
30 |
50 |
55 |
30 |
35 |
40 |

Draw the coordinates (2,2) , (2,4) and (4,2) And join these to form the triangle.

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Class 8 Maths Class 8 Science