Math Problem Statement
Write an equation in slope-intercept form for the linear function shown in the graph.
Solution
To determine the equation of the line in slope-intercept form , we need to find the slope () and the y-intercept ().
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Y-intercept (b): Observing the graph, the line crosses the y-axis at . So, .
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Slope (m): To find the slope, use two points on the line. We can see the points and on the line.
- Slope .
Thus, the equation of the line is:
Would you like a more detailed explanation, or do you have any questions?
- What is slope-intercept form?
- How do you calculate the slope between two points?
- Why is the y-intercept important in an equation?
- What other forms can we use to represent linear equations?
- How do we interpret positive vs. negative slopes?
Tip: Always choose clearly visible points on the line to accurately calculate the slope.
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Slope-Intercept Form
Formulas
y = mx + b
Slope formula: m = (y2 - y1) / (x2 - x1)
Theorems
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Suitable Grade Level
Grades 7-9