Question

If x is an even number, the function f(x) = 2x − 1 gives an odd number. Identify the set of odd numbers corresponding to this set of even numbers: {0, 2, 4, 6, 8}.

Answer 1

x = {0, 2, 4, 6, 8}.

=> f(x) = 2x - 1


x f(x) = 2x - 1

0 2*0 - 1 = - 1

2 2*2 - 1 = 3

4 2*4 - 1 = 7

6 2*6 - 1 = 11

8 2*8 - 1 = 15

Answer: {-1, 3, 7, 11, 15}