Find the simplest solution of ncert class 9th solution of linear equations in two variables of exercise 4.3 question number 1(4). Sir please help me to solve this question in a easiest and best way. Find the best solution of this question. Draw the graph of each of the following linear equations in two variables:(iv) 3 = 2x+y .
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Draw the graph of each of the following linear equations in two variables:(iv) 3 = 2x+y . Q.1(4)
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Solution:
To draw a graph of linear equations in two variables, let us find out the points to plot.
To find out the points, we have to find the values which x and y can have, satisfying the equation.
Here,
3 = 2x+y
Substituting the values for x,
When x = 0,
3 = 2x+y
3 = 2×0+y
3 = 0+y
y = 3
When x = 1,
3= 2x+y
3 = 2×1+y
3 = 2+y
y = 3–2
y = 1
The points to be plotted are (0, 3) and (1, 1)