Question

help

Answer 1

any thoughts ?

Answer 2

vertical line test

Answer 3

?

Answer 4

remember, domain are the "x values" where you see the curve.
it looks like most x-values work, except for the "gap"
what x-values are in the gap ? any idea ?

Answer 5

2 and -2 on both sides

Answer 6

reading the graph is tricky
notice that the 4th tick mark is labeled 8
if we go half way back (toward 0) , that must be 4
and half-way back from 4 is 2

in other words, the tick marks are at 2,4,6,8
(not 1,2,3,4)

so try again.

Answer 7

so 4 because the graph is counting by 2's

Answer 8

so we see that x numbers between -4 and 4 are not used (but -4 and 4 are ok)

they want all numbers in the domain
so check off all numbers 4 or bigger
then check all numbers -4 and smaller (more negative)

Answer 9

it looks like all the choices work except A (2 is in the gap)

Answer 10

So all choices except for choice A?

Answer 11

yes, the domain is all numbers 4 and bigger
or -4 and smaller