Ex 4.4, 2
Give the geometric representations of 2x + 9 = 0 as an equation
(i) in one variable
In one variable, there is only x axis.(No y-axis)
Solving 2x + 9 = 0
2x = 9
x = 9/2
x = 4.5
Here, 2x + 9 = 0 is a point
Hence, we can say that
in one variable 2x + 9 = 0 is a point
Ex 4.4, 2
Give the geometric representations of 2x + 9 = 0 as an equation
(ii) in two variables
In two variables, we have x and y axis
Hence, writing equation 2x + 9 = 0 in terms of x & y
2x + 9 = 0
0 + 2x + 9 = 0
0y + 2x + 9 = 0
Plotting points on graph
Comparison

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.