Math Problem Statement
Solution
The problem asks for the equation of the line shown on the graph.
From the image:
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Identifying two points: Let's pick two points that the line passes through. Looking at the graph:
- Point 1:
- Point 2:
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Find the slope (): The slope of a line is calculated using the formula: Substituting the values of the two points: So, the slope .
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Find the equation using the point-slope form: The equation of a line in point-slope form is: Using one of the points, say , and the slope , the equation becomes: Simplifying:
Thus, the equation of the line is:
Would you like further details on any step, or do you have any questions?
Here are 5 related questions to practice:
- What would the equation be if the slope was positive?
- How do you calculate the y-intercept directly from the equation?
- Can you rewrite the equation in standard form?
- What is the slope-intercept form of a line, and how does it relate to this equation?
- How do you find the equation of a line if you only have its slope and y-intercept?
Tip: Always double-check the points chosen from a graph for accuracy when calculating the slope!
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Graphing
Slope-Intercept Form
Formulas
Slope formula: m = (y2 - y1) / (x2 - x1)
Point-slope form: y - y1 = m(x - x1)
Slope-intercept form: y = mx + b
Theorems
Slope Theorem
Linear Equation Properties
Suitable Grade Level
Grades 8-10