The problem requires drawing the line $y = x$ on the grid provided.

To draw the line $y = x$:

1. Note that $y = x$ is a linear equation with a slope of $1$ and a y-intercept of $0$.
2. This line passes through the origin, $(0, 0)$, and follows a path where for every unit increase in $x$, $y$ increases by the same amount.
3. Plot points where $y = x$, such as $(1, 1)$, $(2, 2)$, $(3, 3)$, $(-1, -1)$, $(-2, -2)$, and $(-3, -3)$.
4. Connect these points to create a straight line extending diagonally from the bottom-left to the top-right of the grid.

The result should be a line passing through points $(0, 0)$, $(1, 1)$, $(2, 2)$, etc., forming a 45-degree angle with both axes.

Would you like additional details on this solution?

Here are 5 follow-up questions that might deepen your understanding:

1. What is the slope of the line $y = x$ and how does it affect the line's orientation?
2. How would the line look if the equation were $y = -x$?
3. What are the key differences between the lines $y = x$ and $y = x + 1$?
4. How would you draw the line $y = 2x$ on the same grid?
5. What points would you plot for the line $y = \frac{1}{2}x$?

Tip: For any line $y = mx + b$, $m$ represents the slope (rise over run), and $b$ is the y-intercept (where the line crosses the y-axis).