Math Problem Statement
Solution
The graph you've uploaded depicts a straight line on a coordinate plane. To analyze this, I'll describe some key characteristics:
1. Slope:
The slope of a straight line is the ratio of the vertical change to the horizontal change between two points on the line. The line appears to slope downward from left to right, indicating a negative slope.
To calculate the slope (m), we can use two clear points from the graph:
- One point: (-6, 6)
- Another point: (4, -2)
The slope formula is: Substituting:
Thus, the slope is -4/5.
2. Y-Intercept:
The y-intercept is where the line crosses the y-axis. From the graph, the line crosses the y-axis at (0, 2). Hence, the y-intercept is 2.
3. Equation of the Line:
The equation of a straight line in slope-intercept form is: Where:
- is the slope,
- is the y-intercept.
Substituting and :
This is the equation of the line shown on the graph.
Would you like further details on how this was derived or have any specific questions?
Here are 5 follow-up questions to consider:
- How does the slope affect the direction of a line?
- What is the significance of the y-intercept in a linear equation?
- How would the graph change if the slope were positive?
- What would the line look like if the slope were zero?
- How can you find the x-intercept from a linear equation?
Tip: Remember, the slope indicates how steep a line is, while the y-intercept tells us where the line crosses the y-axis!
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Math Problem Analysis
Mathematical Concepts
Coordinate Geometry
Linear Equations
Slope
Y-Intercept
Formulas
Slope formula: m = (y2 - y1) / (x2 - x1)
Equation of a line: y = mx + b
Theorems
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Suitable Grade Level
Grades 8-10