Math Problem Statement
Graph this line: y - 5 = -1/3(x + 6)
Solution
Let's solve this step by step to help you graph the line described by the equation:
Equation:
Step 1: Rewrite the equation in slope-intercept form ().
We start by simplifying the equation.
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Distribute to :
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Add 5 to both sides to isolate :
Step 2: Identify the slope () and y-intercept ().
- The slope () is . This means the line decreases by 1 unit vertically for every 3 units it moves horizontally.
- The y-intercept () is 3. This means the line crosses the y-axis at the point .
Step 3: Plot key points.
- Start with the y-intercept: Plot the point .
- Use the slope to find another point:
Starting at , use the slope :- Move down 1 unit (negative slope) and right 3 units to find the point .
- Another point: From , repeat the slope:
- Move down 1 unit and right 3 units to find the point .
Step 4: Graph the line.
- Plot the points , , and on the graph.
- Draw a straight line through these points.
Would you like me to verify further steps, or provide more explanation about graphing lines?
Related Questions:
- How do you find the slope and y-intercept from a linear equation?
- What are alternative methods to graph linear equations without converting to slope-intercept form?
- How can you verify that a point lies on a given line?
- What does a positive vs. negative slope look like on a graph?
- How would you graph a vertical or horizontal line?
Tip: Always double-check your calculations for slope and y-intercept to avoid errors when plotting points.
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Slope-Intercept Form
Graphing Lines
Formulas
Slope-Intercept Form: y = mx + b
Point-Slope Form: y - y1 = m(x - x1)
Theorems
Slope of a Line
Graphing Linear Equations
Suitable Grade Level
Grades 8-10