MCQ Questions for Class 8 Maths Introduction To Graphs Quiz 1

Coordinates of P are (a,b) where a is a root of the equation

$x^{2}$ -x-42=0 and b is an intregral root of equation

$x^{2}$ +ax+

$a^{2}$ -37=The coordinates of P can be

0%
(6,4)
0%
(-7,-4)
0%
(-7,-3)
0%
(6,-3)

To which point the origin be shifted so that the new coordinates of

$( 7,2 )$ would be

$( - 1,3 ) =$

0%
$( - 8,1 )$
0%
$( 8,-1 )$
0%
$( 6,5 )$
0%
$( - 7,1 )$

For all values of

$a and b$ the line

$\left(a + 2b\right) x + \left(a b\right)y + \left(a + 5b\right) = 0$ passes through the point

0%
$\left(-1, 2\right)$
0%
$\left(2, -1\right)$
0%
$\left(-2, 1\right)$
0%
$\left(1, -2\right)$

If the vertices of a triangle be (a, b-c), (b, c-a) and (c,a-b), then the centro of the triangles lies-

0%
On y-axis
0%
Onx-axis
0%
At origin
0%
None of these

With the help of which of the following will you describe the position of a pen on a table?

0%
Coordinate geometry
0%
Algebra
0%
Trignometry
0%
Proportions

$( 1,2 ) , ( 3,6 )$ are two opposite vertices of a rectangle and if the other two vertices lie on the line

$2 y = x + c,$ then

$c$ and other two vertices are

0%
$6 , ( 4,5 ) ( 0,3 )$
0%
$0 , ( 4,5 ) ( 0,3 )$
0%
$6 , ( 6,6 ) ( - 2,2 )$
0%
$6 , ( 8,7 ) ( 7,1 )$

If A(9, -9), B(1, -3) are the ends of right angled isosceles triangle, then the third vertex is

0%
(8, -2)
0%
(-8, 2)
0%
(8,-8)
0%
none of these

If two vertices of a triangle are

$(-4, 3), (2, 6)$ and the centroid is the origin, then the third vertex is

0%
$(3, 1)$
0%
$(2, -9)$
0%
$(4, -1)$
0%
$(3, 0)$

The following line graph shows the yearly sales figures for a manufacturing company. Compute the difference between the sales (in Rs. crores) in

$2002$ and

$2006$ .

0%
$4$
0%
$6$
0%
$7$
0%
$10$

Explanation

From the graph the value on

$y$ - axis (denoting sales) for the year

$2002$ is Rs

$4$ crore.
From the graph the value on

$y$ - axis (denoting sales) for the year

$2006$ is Rs

$8$ crore.
Difference in sales

$= 8 - 4$ =

$4$ crore.

The patient's temperature was same for two times during the period given. These two times were:

0%
1 pm and 2 pm
0%
2 pm and 3 pm
0%
12 noon and 3 pm
0%
9 am and 10 pm

The following line graph shows the yearly sales figures for a manufacturing company. What were the sales in

$2005$ ?

0%
$4$
0%
$6$
0%
$7$
0%
$10$

Explanation

From the graph the value on

$y - axis$ (denoting sales) for the year

$2005$ is Rs.

$10$ crore

The following line graph shows the yearly sales figures for a manufacturing company. What were the sales (in Rs. crores) in

$2002$ ?

0%
$2$
0%
$4$
0%
$6$
0%
$8$

Explanation

As shown in the above graph,

$y$ axis represents the sales(in crores) and

$x$ axis represents the years.

So in the year

$2002$ the sales were upto

$4$ crore.

_____ represents data that changes continuously over period of time.

0%
Line graph
0%
Pie graph
0%
Bar graph
0%
Histogram

The following line graph shows the yearly sales figures for a manufacturing company. What were the sales (in Rs. crores) in

$2006$ ?

0%
$2$
0%
$4$
0%
$6$
0%
$8$

Explanation

From the graph the value on

$y - axis$ (denoting sales) for the year

$2006$ is Rs

$8$ crore

The following line graph shows the yearly sales figures for a manufacturing company. What were the sales (in Rs. crores) in

$2003$ ?

0%
$6$
0%
$7$
0%
$8$
0%
$10$

Explanation

From the graph the value on

$y - axis$ (denoting sales) for the year

$2003$ is Rs

$7$ crore

What is the approximate ratio of the sales of Medimix in

$2007$ to the sales of Hamam in

$2010$ ?

0%
$3:2$
0%
$1:3$
0%
$2:3$
0%
$3:1$

Explanation

The approximate ratio of the sales of Medimix in

$2007$ to the sales of Hamam in

$2010$ is:

Required ratio

$=$

$\dfrac{15}{10}$
Ratio

$= 3:2$

Draw a graph for the following:

Side of square (in cm)	2	3	4	5	6
Area (in cm $^2$ )	4	9	16	25	36

Is the graph linear?

0%
Yes
0%
No
0%
Cannot be determined
0%
None of these

Which of the following are types of graph which include bars?

0%
Bar graph
0%
Pie graph
0%
Histogram
0%
Line graph

In which of the following graph point

$\left ( 3,6 \right )$ has been plotted correctly ?

0%
0%
0%
0%
None of these

The bar-graph provided gives the sales of books (in thousands) from six branches of a publishing company during two consecutive years

$2006$ and

$2007.$ Answer the question based on this bar-graph.

What is the ratio of the total sales of branch

$B_2$ for both years to the total sales of branch

$B_4$ for both years?

0%
$2 : 3$
0%
$3 : 5$
0%
$13 : 18$
0%
$7 : 9$

Explanation

Total sale of branch

$B_2$ in two years

$=(75+55)\ thousands=130\ thousands$

Total sale of branch

$B_4$ in two years

$=(85+95)\ thousands=180\ thousands$

Required ratio

$=\displaystyle\frac{130}{180}$

$=\displaystyle\frac{13}{18}$

Hence, the required ratio is

$13:18$ .

The bar chart shows the number of workers employed by a trading companyin three years. Calculate the difference between the total number of male and female workers employed over those three years.

0%
1
0%
2
0%
4
0%
6

Explanation

The number of male workers in

$2003=5$ ,

the number of male workers in

$2004=7$ and

the number of male workers in

$2005=9$ .

So the total of male workers in

$3 yrs.=5+7+9=21$ .

Again The number of female workers in

$2003=8$ ,

the number of female workers in

$2004=9$ and

the number of female workers in

$2005=5$ .

So the total of female workers in

$3 yrs.=8+9+5=22$ .

$\therefore$ The difference between the male & female workers

$=22-21=1$ .

Ans- Option A.

On joining the points if we get a straight line, that graph is called.

0%
Bar graph
0%
Pie chart
0%
Line graph
0%
None of these

The line graph shows the monthly expenditure of Vasu family. The total expenditure over the first

$3$ months is

0%
$Rs. 320$
0%
$Rs. 600$
0%
$Rs. 1100$
0%
$Rs. 1400$

Explanation

In the graph, 1 unit on y-axis

$=Rs.100$

The monthly expenses of Basu family in the month of

In January, the expenditure is marked upto

$5$ units

$=Rs.500$

In February, the expenditure is marked upto

$6$ units

$=Rs.600$

In March, the expenditure is marked upto

$3$ units

$=Rs.300$

$\therefore$ The total expenditure over the first

$3$ months

$=Rs.(500+600+300)$

$=Rs.1400$

Which of the following represents data that continuously changes over periods of time?

0%
Bar graph
0%
Circle graph
0%
Histogram
0%
Line graph

The given line graph shows the growth rate of a kitten During which

$2$ month period the kittens weight increased the most

0%
$0$ to $2$ months
0%
$2$ to $4$ months
0%
$4$ to $6$ months
0%
$6$ to $8$ months

Explanation

The line graph shown is steepest from the period of

$2$ months to

$4$ months showing that the growth is maximum

The bar chart represents the data given in the frequency table shown below. The bar for which year is incorrectly drawn?

0%
1995
0%
1996
0%
1997
0%
1998

A _____ is the representation of data by using graphical symbols such as lines, bars, pie slices, histogram etc.

0%
flow chart
0%
diagram
0%
equation
0%
graph

Explanation

A graph is the representation of data by using graphical symbols such as lines, bars, pie slices, histogram etc.
Example: Line graph representing the temperature of

$8$ days.

A graph showing two sets of data simultaneously is known as

0%
pictograph
0%
histogram
0%
pie chart
0%
double bar graph

Rectangle bars touching each other in which graph ______.

0%
histogram
0%
bar
0%
pie
0%
line

In which graph, rectangle bars are separated?

0%
line
0%
pie
0%
bar
0%
histogram

CBSE Questions for Class 8 Maths Introduction To Graphs Quiz 1 - MCQExams.com

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Practice Class 8 Maths Quiz Questions and Answers

CBSE Questions for Class 8 Maths Introduction To Graphs Quiz 1 - MCQExams.com

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Practice Class 8 Maths Quiz Questions and Answers

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