Solve the following inequalities graphically in two-dimensional plane:

    \[x+y<5\]

Solve the following inequalities graphically in two-dimensional plane:

    \[x+y<5\]

Solution:

Given inequality  

    \[x+y<5\]

Now consider,

X

    \[0\]

    \[5\]

y

    \[5\]

    \[0\]

Let us draw a dotted line

    \[x+y=5\]

in the graph (∵ 

    \[x+y=5\]

is excluded in the given question)

Let us take

    \[x+y<5\]

A point

    \[(0,0)\]

is selected,

⇒ 

    \[0+0<5\]

⇒ 

    \[0<5\]

(this is true)

Therefore, the solution region of  

    \[x+y<5\]

is below the line

    \[x+y=5\]

. (That is origin is included in the region)

The graph is represented as: