Selina Concise Mathematics Class 9 ICSE Solutions Graphical Solution (Solution of Simultaneous Linear Equations, Graphically)
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Selina ICSE Solutions for Class 9 Maths Chapter 27 Graphical Solution (Solution of Simultaneous Linear Equations, Graphically)
Exercise 27(A)
Solution 1:
(i)
The graph x= 5 in the following figure is a straight line AB which is parallel to y axis at a distance of 5 units from it.
(ii)
x+5=0
x = -5
The graph x= -5 in the following figure is a straight line AB which is parallel to y axis at a distance of 5 units from it in the negative x direction.
(iii)
The graph y = 7 in the following figure is a straight line AB which is parallel to x axis at a distance of 7 units from it.
(iv)
y + 7 = 0
y = -7
The graph y = -7 in the following figure is a straight line AB which is parallel to x axis at a distance of 7 units from it in the negative y direction.
Solution 2:
From the figure it is clear that, the graph meets the coordinate axes at (-9, 0) and (0, 6)
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Exercise 27(B)
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