Question

y=a+b where a and b direct and in direct variation w .r.t x ; x =1 y=11 ,x=2 y=13 ,value of y when x=3​

Answer 1

Step-by-step explanation:

y=a+b

a= kx or b= kx

y=a+b= kx+kx= 2kx

now , x=1. and y=11

y=2kx

11= 2*k*1

k=11/2

now , x= 2 and y=13

y=2kx

13= 2*k*2

k= 13/4

now, x=3 K= 11/2 or 13/4

y= 2kx

y= 2*11/2*3 or 2*13/4*3

y= 33 or 39/2