graph this equation: y = -2 click to select points on the graph.

Explanation:

Step1: Identify the equation type

The equation $y = - 2$ is a horizontal - line equation. In the form $y = k$ (where $k$ is a constant), for all values of $x$, $y$ is always equal to $-2$.

Step2: Plot points

We can choose any values of $x$. For example, when $x=-10,y = - 2$; when $x = 0,y=-2$; when $x = 10,y=-2$. Plot the points $(-10,-2),(0,-2),(10,-2)$ on the graph.

Step3: Draw the line

Connect the plotted points with a straight line. This line is parallel to the $x$-axis and passes through the point $(0, - 2)$ on the $y$-axis.

Answer:

Draw a horizontal line passing through the point $(0,-2)$ on the $y$-axis. All points on this line have a $y$-coordinate of $-2$ regardless of the $x$-coordinate.