Question

The number -2 is included in which of the following solutions? Choose all that apply.

{x:x < -3 or x > 4}

{x:x >_ 5}

{x:x < 5}

{x: -3 < x < 4}

Answer 1

The last 3 choices apply.

Explanation:

A plot of these solutions does not need to be very sophisticated. It can even be "in your head." See the attached. Arrows point to where the given expression includes the value -2.