Question

Sarita and Pallavi of class ix decided to collect Rs 25 for class cleanliness from their pocket mo

Answer 1

let money donated by pallavi = x
"         "             "         sarita = y

x+y=25
y=25-x     eq(1)                    (answer of first point)

by putting value of x = 0 in eq(1) we get
y=25-0                          
y=25                                                                     (0,25)

by putting value of x = 1 in eq(1) we get
y=25-1
y=24                                                                     (1,24)

by putting value of x = 2 in eq(1) we get
y=25-2
y=23                                                                      (2,23)

.'.   Three coordinates are (0,25)    (1,24)    (2,23)      by putting these coordinates we can make graph 


hope it helped