Attend to question 4

Question 2 Given two functions f(x) = ar + b , g(x) = 1x + x, and (g of)(x) = 9x2-9x + 3 . Find the values a and b. a) 14] b) Show that a real valued function fin) = n2 + 5 is neither one to one or onto. c) Letfbe the function , defined by f(x) = 2x-1 Question 3 a) Given that A = { 1, 2, 3, 4 } .The relation R on the set A is defined by R ={ (1,1 ) ,(2,2),(23) ,(2,4) ,(32), b) Let A -1,2, 3, 4,5,), R Question4 14] 141 (4,2)) Determine whether R is reflexive, symmetric and transitive (a,b) such that (a+ b) is even , R is an equivalence relation on set A. Show 16] that R is an equivalence relation