Question

Give the geometrical representation of 3x+1=x-9 in
(i) one variable (ii) two variables

Answer 1

Answer:

3x+1=x-9

3x-x+1+9=0

2x+10=0

2x=-10

x=-5

in one variable =

on number line represent it on -5

in two variables =

represent it on graph with the value of y=0 and x= -5

hope it was helpful for you. ^_^^_^^_^^_^^_^

Answer 2

(i)x = -5

(ii) (-5,1) and (-5,2)

Given:

3x+1=x-9

To find:

Give the geometrical representation of 3x+1=x-9 in

(i) one variable (ii) two variables

Solution:

First we will find the equation in one variable

For this, we just have to find the value of x,

3x + 1 = x - 9

3x - x = -9-1

2x = -10

x = -5

Now, we will find the representation in two variables

For this, we will add 0 as coefficient and y as variable

Equation will be

2x + 0y = -10

We will place the value of y as 1 first

2x + 0*1 = -10

2x = -10

x = -5

Now, we will put value of y as 2

2x + o*2 = -10

2x = -10

x = -5

So, the coordinates will be (-5,1) and (-5,2).

It can also be seen that value of x will not change with y and it will remain same.

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