Question

Below are the solutions for a variable "x." State the solution that matches the graph below.

Answer 1

We have a number line as indicated in the figure above. From this figure we know that the x-values increase from left to right. So we need to write the solution that matches the previous graph. Taking a look on the graph we see that $x$ begins in -3 and closes in 8, that is, $x$ takes values from -3 to 8. In a mathematical language this is given by the following statement: 

$x \in [-3,8]$