Question

8. If a function f from R to R is defined by f= {(x, 3x – 5) : x € R}, find the values of a and b given
that (a, 4) and (1, b) belong to f.​

Answer 1

Answer:

a=3,b=-2;

Step-by-step explanation:

=>(a,4)=(a,f(a));

=>f(a)=4=3a-5;

=>a=9/3=3;

=>(1,b)=(1,f(1));

=>f(1)=b;

=>3(1)-5=b;

=>b=-2;

Therefore a=3,b=-2;