If f(x)=ax+b,where a and b are integers,f(-1)=-5 and f(3)=3, then a and b are equal to

If f(x)=ax+b,where a and b are integers,f(-1)=-5 and f(3)=3, then a an

1.	If f(x)=ax+b,where a and b are integers,f(-1)=-5 and f(3)=3, then a and b are equal to
Answer» Put x=-1 and f (-1)=-5 in given f (x)Thus, -5=-a+b 3= 3a+bon subtracting we will get a=2 and b=-3