Constraint solution sets of two-variable linear inequalities

The  exercise appears under the Algebra I Math Mission. This practices Find the range of values of one variable that corresponds to a given value of the other variable in a linear inequality.

Types of problems
There is one type of problem in this exercise:
 * 1) Which $$x$$ or $$y$$ value is a solution of the inequality represented by the graph below?: This problem asks the user to find which $$x$$ or $$y$$ are a solution to the inequality of the graph below and type it in the text box.

Strategies
Basic knowledge of linear inequalities are required for this exercise.
 * 1) User can graphically check whether a pair of values $$(x,y)$$ is a solution of an inequality by checking whether the point with the coordinates ($$(x,y)$$ lies in the shaded area of the graph representing the inequality.
 * 2) Solid boundary lines represent non-strict inequalities, so the point $$(x,y)$$ is part of the solution.

Real-life Applications

 * 1) For most people, in order to get their license they have to be older than 17. So, they can write this as an inequality. $$x$$ is the age of a person who wants to drive. In this case $$x$$ has to be > or equal to 17.