Math Problem Statement
Graph the line with the equation y = -x - 2.
Solution
The equation of the line given is , which is in slope-intercept form . Here's the breakdown:
- Slope (m): The coefficient of is , so the slope is . This means for every 1 unit you move to the right on the -axis, you move 1 unit down on the -axis.
- Y-intercept (b): The constant is the y-intercept, meaning the line crosses the -axis at .
Steps to graph the line:
- Plot the y-intercept at .
- Use the slope to find another point. Since the slope is , from , move 1 unit to the right and 1 unit down to get to .
- Repeat this to plot a few more points, e.g., , , etc.
- Draw the line through these points.
Would you like more details on graphing, or should I help with anything else?
Here are some related questions:
- How do you determine the slope of a line from an equation?
- What is the significance of the y-intercept in a linear equation?
- How does changing the slope affect the angle of the line on the graph?
- What is the equation of a line parallel to ?
- How would you graph a line with a positive slope instead of a negative one?
Tip: The slope indicates how steep the line is. A larger absolute value of the slope results in a steeper line!
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Graphing
Formulas
Slope-intercept form y = mx + b
Theorems
Slope of a Line
Y-intercept
Suitable Grade Level
Grades 7-9