To graph the line $y = 5$ on the given coordinate grid:

1. Understand the Equation:
   The equation $y = 5$ represents a horizontal line because the value of $y$ is constant (5), regardless of the value of $x$.

2. Plot the Line:

   • Identify the point where $y = 5$ on the $y$-axis.
   • Draw a straight, horizontal line across the graph that passes through all points where $y = 5$.

This line will be parallel to the $x$-axis and will extend infinitely to the left and right.

Would you like me to graph it for you? Let me know if you have further questions!

Here are 5 related questions to expand your understanding:

1. How would the graph change if the equation were $y = -5$?
2. What does a vertical line look like, and what equation represents it?
3. How would you graph $y = 3x + 2$?
4. What is the slope of the line $y = 5$?
5. How do you determine the intercepts of a line on the $x$- and $y$-axes?

Tip: Horizontal lines have a slope of zero because the change in $y$ is zero while $x$ changes.