Question

12.) If f :R → R is defined by f(x) = 3x - 5, prove that f is a bijection and find its inverse​

Answer 1

Answer:

o prove the function is injective you must show if f(a)=c and f(b)=c then a=b. Let f(a)=c ... If f (3x+4) =5x+8, what is the inverse of x, i.e. f-1(x)? ... any given number in R,(I denote it to X)and you can find a certain number (X+5)/3 as it's preimage

Step-by-step explanation:

Answer 2

I think this will be useful for all