QUESTIONS CLASS VIII
PRACTICE CHAPTER – 15_ INTRODUCTIONS TO
GRAPH
1. If
y – coordinate of a point is zero, then this point always lies:
(a) I quadrant (b) II quadrant (c) x – axis (d) y – axis
2. If
x – coordinate of a point is zero, then this point always lies:
(a) I quadrant (b) II quadrant (c) x – axis (d) y – axis
3. Point
(–6, 4) lies in the quadrant:
(a) I (b) II (c) III (d) IV
4. The
point (–4, –3) means:
(a) x = –4, y = –3 (b) x = –3, y = –4 (c) x = 4, y = 3 (d)
None of these
5. Point
(0, 4) lies on the:
(a) I quadrant (b) II quadrant (c) x – axis (d) y – axis
6. Point
(5, 0) lies on the:
(a) I quadrant (b) II quadrant (c) x – axis (d) y – axis
7. On
joining points (0, 0), (0, 2), (2,2) and (2, 0) we obtain a:
(a) Square (b) Rectangle (c) Rhombus (d) Parallelogram
8. Point
(–2, 3) lies in the:
(a) I quadrant (b) II quadrant (c) III quadrant (d) IV
quadrant
9. Point
(0, –2) lies:
(a) on the xaxis (b) in the II quadrant (c) on the yaxis
(d) in the IV quadrant
10. Abscissa
of the all the points on x – axis is:
(a) 0 (b) 1 (c) –1 (d) any number
11. Ordinate
of the all the points on x – axis is:
(a) 0 (b) 1 (c) –1 (d) any number
12. Abscissa
of the all the points on y – axis is:
(a) 0 (b) 1 (c) –1 (d) any number
13. Ordinate
of the all the points on y – axis is:
(a) 0 (b) 1 (c) –1 (d) any number
14. The
point whose ordinate is 4 and which lies on y – axis is:
(a) (4, 0) (b) (0, 4) (c) (1, 4) (d) (4, 2)
15. The
perpendicular distance of the point P(3,4) from the y – axis is:
(a) 3 (b) 4 (c) 5 (d) 7
2 or 3 marks
11. Draw
the graph of y = 3x. From the graph, find the value of y when (i) x = 4 and
(ii) x =5.
12. Consider
the relation between the perimeter and the side of a square, given by P = 4a.
Draw a graph to show this relation. From the graph, find the value of P when
(i) a = 4 and (ii) a =5.
13. Consider
the relation between the area and the side of a square, given by A = x^{2}. Draw a
graph to show this relation. From the graph, find the value of P when x = 4.
14. Simple
interest on a certain sum is Rs. 40 per year then S = 40x, where x is the
number of years. Draw a graph of this relation. From the graph, find the value
of S when (i) x = 5 and (ii) x =6.
15. Plot the points
(0, 2), (3, 0), (–3, 0) and (0, –2) in the graph sheet. Join these points. Name
the figure obtained and find the area of the figure so obtained.
1.(c)

2.(d)

3. (b)

4. (a)

5. (d)

6. (c)

7. (a)

8. (b)

9. (c)

15. (a)

10. (a)

11.

12. (d)

13. (a)

14. (d)
