Question

express y in terms of x ,it being given that 3x+y-9=0.check weather the points (3,0) and( 2,2) lies in the equation

Answer 1

Answer:

x = 9 -y/3

3 =9-0/3

3=3

but

2 = 9-2/3

2=7/3

therefore

(2,2)does not lie on the equation