Question

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Answer 1

If -5 is included in the solution set it will be in the red area.

Remember that open dots do not count in the solution set, only solid dots do, because solid is 'or equal to'.

Answer 2

So which one(s) do you think are correct?

Answer 3

Where is -5 in A and B?

Answer 4

That's fine, try again.

Answer 5

Where is -5 on option A?

Answer 6

Yes, which means it's included in the solution set. So A is correct.

Answer 7

What about option B?

Answer 8

Yes, so that means...?

Answer 9

You got it. What about option C?

Answer 10

Anything in the red area is in the solution set. Anything outside of the red area is not in the solution set(which includes open circles).

Answer 11

Yep, now what about the last one?

Answer 12

Yep!

Answer 13

So the answers are A & D.

Answer 14

No problem.