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6 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
From the given graph, choose the letters that indicate the location of the points given below
Image
(i) $(2,0)$ $\qquad$ (ii) $(0,4)$ $\qquad$ (iii) $(5,1)$
(iv) $(2,6)$ $\qquad$ (v) $(3,3)$
Answer
(i) In the given graph, point F is (2,0)
i.e. x = 2, y = 0
(ii) In the given graph, point A is (0,4)
i.e. x = 0, y = 4
(iii) In the given graph, point H is (5, 1)
i.e. x = 5, y = L
(iv) In the given graph, point C is (2, 6)
i.e. x = 2, y = 6
(v) In the given graph, point E is (3, 3)
ie. x = 3, y = 3
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Question 21 Mark
Plot the given points on a graph sheet and check, if the points lie on a straight line if not, name the shape they form when joined in the given order
$(1,1),(1,2),(2,2)$ and $(2,1)$.
Answer

Image
All points are not lie on the straight line. Hence, if we join the given points in the given order, we found a square shaped figure.
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Question 31 Mark
The following graph shows the relation between distance and time (distance-time graph). Find the distance covered in 3 s.
Image
Answer
Distance covered in 3 s is 15 m . i.e.
Image
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Question 41 Mark
Plot the given points on a graph sheet and check, if the points, lie on a straight line. If not, name the shape they form when joined in the given order
$ (1,2),(2,4),(3,6),(4,8) .$
Answer

Image
All given points lie on a straight line.
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Question 51 Mark
Write the $y$-coordinate (ordinate) of each of the given points.
(i) $(3,5)$ $\qquad$ (iii) $(4,0)$ $\qquad$ (iii) $(2,7)$
Answer
(i) Given, (3,5)
In this point, y-coordinate (ordinate) is 5 i.e. y = 5.
(ii) Given, (4, 0)
In this point, y-coordinate (ordinate) is 0 i.e. y = 0.
(iii) Given, (2, 7)
In this point, y-coordinate (ordinate) is 7 ie. y = 7.
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Question 61 Mark
Write the xcoordinate (abscissa) of each of the given points.
(i) $(7,3)$ $\qquad$ (ii) $(5,7)$ $\qquad$ (iii) $(0,5)$
Answer
(i) Given. (7.3)
In this point, x-coordinate (abscissa) is 7 i.e. x = 7
(ii) Given,(5, 7)
In this point, x-coordinate (abscissa) is 5 i.e. (x = 5)
(iii) Given (0,5)
In this point, x-coordinate (abscissa) is 0 i.e. (x = 0)
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1 Marks Question - MATHS STD 8 Questions - Vidyadip