Decide which of the following statements is true and which is false. Give reasons for your answer.
Points whose x and y coordinates are equal, lie on a line passing through the origin.
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
The following table shows the amount of rice grown by a farmer in different years:
| Years: |
2000 |
2001 |
2002 |
2003 |
2004 |
2005 |
2006 |
| Rice grown (in quintals): |
200 |
180 |
240 |
260 |
250 |
200 |
270 |
Plot a graph to illustrate this information.
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
The following table gives the information regarding the number of persons employed to a piece of work and time taken to complete the work:
| Number of persons: |
2 |
4 |
6 |
8 |
| Time taken (in days): |
12 |
6 |
4 |
3 |
Plot a graph of this information.
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
The following table gives the information regarding length of a side of a square and its area:
| Length of a side (in cm): |
1 |
2 |
3 |
4 |
5 |
| Area of square (in cm2): |
1 |
4 |
9 |
16 |
25 |
Draw a graph to illustrate this information.
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
Find CI on Rs. 12600 for 2 years at 10% per annum compounded annually.
[7] Comparing Quantities
Chapter: [7] Comparing Quantities
Concept: undefined >> undefined
Plot the point (4, 3) on a graph sheet. Is it the same as the point (3, 4)?
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
Plot the following points and verify if they lie on a line. If they lie on a line, name it.
(0, 2), (0, 5), (0, 6), (0, 3.5)
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
Plot the following points and verify if they lie on a line. If they lie on a line, name it.
A (1, 1), B (1, 2), C (1, 3), D (1, 4)
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
Plot the following points and verify if they lie on a line. If they lie on a line, name it.
K (1, 3), L (2, 3), M (3, 3), N (4, 3)
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
Plot the following points and verify if they lie on a line. If they lie on a line, name it.
W(2, 6), X (3, 5), Y(5, 3), Z (6, 2)
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
From Fig, choose the letter(s) that indicate the location of the points given below:
(i) (2, 1)
(ii) (0, 5)
(iii) (2, 0)
Also, write
(iv) The coordinates of A.
(v) The coordinates of F.
[13] Introduction to Graphs
Chapter: [13] Introduction to Graphs
Concept: undefined >> undefined
Write the additive inverse of the following: `(-7)/19`
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
Write any 3 rational numbers between –2 and 0.
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
Find any ten rational numbers between `(-5)/6 "and" 5/8`.
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
Find a rational number between `1/4 "and" 1/2`.
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
Arjun is twice as old as Shriya. Five years ago his age was three times Shriya’s age. Find their present ages.
[2] Linear Equations in One Variable
Chapter: [2] Linear Equations in One Variable
Concept: undefined >> undefined
The digits of a two-digit number differ by 3. If the digits are interchanged, and the resulting number is added to the original number, we get 143. What can be the original number?
[2] Linear Equations in One Variable
Chapter: [2] Linear Equations in One Variable
Concept: undefined >> undefined
Between two given rational numbers, we can find ______
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
`(x + y)/2` is a rational number.
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
Which of the following statements is always true?
[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
