Question

Given: F = {(0, 1), (2, 4), (4, 6), (6, 8)} and G = {(2, 5), (4, 7), (5, 8), (6, 9), (7, 5)} Find the common domain of F and G. {2, 4, 6} {1, 4, 6, 8} {0, 2, 4, 6}

Answer 1

{ 2, 4, 6 }

Explanation:

These are the only x values that F and G have in common.

Answer 2

Answer: In the standard notation, you have (x,y) where x is a point in the domain.

So if they ask you wich points on the domain of F also are in the domain of G, you need to see the first number in each parenthesis.

for F are : 0,2,4,6

for G are : 2,4,5,6,9

So the common points are 2, 4 and 6,