Question

Choose the correct description of the graph of the inequality −x < 3.

Open circle on 3, shading to the left.

Closed circle on −3, shading to the left.

Open circle on −3, shading to the right.

Closed circle on 3, shading to the right.

Answer 1

We have to change x so it's positive, in turn, we change the signs as well from < to > so we end up with x > -3. Since it is only greater than, and not equal to, we don't include that in the domain, but we do include everything above it. Does this help?

Answer 2

th is D

Answer 3

The open and closed circles are representing ( ) and [ ] correct? Where open is [ ] and closed is ( )?

Answer 4

Also, remember, 3 is now -3.