Question

What are the values of the functions y =x - 4 for x = 0, 1, 2 and 3?

-4, -1, 2, 5
0 ,3 , 6, 9
-4, 2, 5, 8
0, 1, 5, 9

Answer 1

just plug in x = 0 and x = 1 , 2 and 3 and see if they fit

Answer 2

Huh?

Answer 3

check out the first of the option

x == o y = o - 4 OK
x = 1, y = 1 - 4 = -3 not OK

so try next option etc