If the slope is 0 and the y-intercept is -3, the equation of the line can be written as:

\[
y = mx + b
\]

Where:
- \( m \) is the slope, and
- \( b \) is the y-intercept.

Since the slope (\( m \)) is 0, the equation simplifies to:

\[
y = -3
\]

This is a horizontal line that crosses the y-axis at -3.

Would you like further details or have any questions?

Here are 5 related questions:
1. What is the equation of a line with a slope of 2 and a y-intercept of 5?
2. How do you find the slope of a line given two points?
3. What is the equation of a vertical line passing through the point (4, -3)?
4. How does a line with a negative slope look on a graph?
5. What is the meaning of the x-intercept of a line?

**Tip:** A line with a slope of 0 is always horizontal, meaning its y-value never changes.

Understand the equation of a horizontal line with a slope of 0 and a y-intercept of -3. This problem explores linear equations in slope-intercept form and the behavior of horizontal lines. Ideal for students in Grades 6-8.

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