Question

Yamini and Fatima two students of class 9 together contributed rupees 100 towards the prime minister relief fund to help the earthquake victims write a linear equation which satisfy this data​

Answer 1

$\huge \bold \red{Answer}$

Let contribution of yamini be x.

contribution of yamini be y.

According to question,

x+y=100

For x=0 , we have y=100-0=100

For x=10 , we have y=100-10=90

For x=20 , we have y=100-20=80

Hence, (0,100) , (10,90) and (20,80)

Answer 2

Given :

Yamini and Fatima together contributed Rs.100 .

To Find :

A linear equation and draw its graph .

Solution :

$\longmapsto\tt{Let\:the\:contribution\:of\:Yamini=x}$

$\longmapsto\tt{Let\:the\:contribution\:of\:Fatima=y}$

A.T.Q :

$\longmapsto\tt{x+y=100}$

Putting x = 0 :

$\longmapsto\tt{0+y=100}$

$\longmapsto\tt\bf{y=100}$

Similarly ,

Putting y = 0 :

$\longmapsto\tt{x+0=100}$

$\longmapsto\tt\bf{x=100}$