A **constant rate of -3** on a graph refers to a linear relationship where the slope of the line is -3. This means that for every increase of 1 unit in the horizontal direction (usually the x-axis), the value of the dependent variable (on the y-axis) decreases by 3 units.

### Graphically:
- The line will slope downward from left to right.
- If the rate (or slope) is -3, the equation of the line can generally be written as:
  \[
  y = -3x + b
  \]
  where \(b\) is the y-intercept (the point where the line crosses the y-axis).
  
### Example:
If the equation of the line is \(y = -3x + 2\), the line will cross the y-axis at \(y = 2\), and for every 1 unit increase in \(x\), \(y\) will decrease by 3 units.

Would you like to explore more about this concept, such as graphing examples or specific applications?

### Related Questions:
1. What is the significance of the slope in linear functions?
2. How do you calculate the slope between two points?
3. How does a constant rate affect real-world problems like velocity or economics?
4. What are the key differences between positive and negative slopes?
5. How can you find the y-intercept of a line?

**Tip:** The slope of a line tells you how steep the line is and in which direction it moves—upwards for positive slopes and downwards for negative slopes.

Explore the concept of a constant rate of -3 on a graph, representing a linear equation where the slope is -3. Learn how the slope affects the direction of the line and the equation in slope-intercept form (y = mx + b). Suitable for students in Grades 8-10.

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