Q54 of 90 Page 372

Find the coordinates of the vertices of the given figures.

The coordinates are starting from the left-most and moving clockwise.

For figure I, the coordinates of its vertices are (1, 1), (2, 3), (4, 2) and (3, 0).


For figure II, the coordinates of its vertices are (0, 5), (2, 4) and (1, 2).


For figure III, the coordinates of its vertices are (1, 5), (2, 6), (3, 6), (4, 5), (4, 4), (2, 4) and (2, 5).


For figure IV, the coordinates of its vertices are (4, 3), (5, 5), (6, 3) and (5, 1).


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52

The graph below gives the actual and expected sales of cars of a company for 6 months. Study the graph and answer the questions that follow.


A) In which month was the actual sales same as the expected sales?


B) For which month(s) was (were) the difference in actual and expected sales the maximum?


C) For which month(s) was (were) the difference in actual and expected sales the least?


D) What was the total sales of cars in the months-Jan, Feb. And March?


E) What is the average sales of cars in the last three months?


F) Find the ratio of sales in the first three months of the last three months.

 53

The graph given below shows the marks obtained out of 10 by Sonia in two different tests. Study the graph and answer the questions that follow.


A) What information is represented by the axes?


B) In which subject did she score the highest in Test I?


C) In which subject did she score the least in Test II?


D) In which subject did she score the same marks in both the Tests?


E) What are the marks scored by her in English in Test II?


F) In which test was the performance better?


G) In which subject and which test did she score full marks?

 55

Study the graph given below of a person who started from his home and returned at the end of the day. Answer the questions that follow.


A) At what time did the person start from his home?


B) How much distance did he travel in the first hours of his journey?


C) What was he doing from 3 pm to 5 pm?


D) What was the total distance travelled by him throughout the day?


E) Calculate the distance covered by him in the first 8 hours of his journey.


F) At what time did he cover 16 km of his journey?


G) Calculate the average speed of the man from (a) A to B, (b) B to C, (c) At what time did he return home?

 56

Plot a line graph for the variables p and q where p is two times q i.e, the equation is p = 2q. Then find.

A) the value of p when q = 3


B) the value of q when p = 8