Math Problem Statement
Solution
To determine the equation of the line shown in the graph, we can follow these steps:
-
Find the slope (m):
- The slope of a line is calculated as the change in (rise) divided by the change in (run) between two points on the line.
- From the graph, we can observe two points that lie on the line. One appears to be , and the other appears to be , which is also the y-intercept.
Using the formula for slope :
So, the slope is .
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Identify the y-intercept (b):
- From the graph, the line crosses the -axis at , so the y-intercept .
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Write the equation:
- The equation of a line in slope-intercept form is . Substituting the values of and :
Thus, the equation of the line is .
Would you like a detailed explanation of any part of this process?
Here are some related questions:
- How do you calculate the slope if the points aren't given explicitly?
- What is the point-slope form of a line?
- How do you convert point-slope form to slope-intercept form?
- How do you graph a line if you are only given the equation?
- Can you find the equation of a line if you are given only the slope and a point?
Tip: Always double-check the coordinates you pick from the graph to ensure the calculation is accurate!
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Math Problem Analysis
Mathematical Concepts
Slope
y-intercept
Slope-intercept form of a linear equation
Formulas
Slope: m = (y2 - y1) / (x2 - x1)
Slope-intercept form: y = mx + b
Theorems
The formula for the slope of a line between two points
Slope-intercept equation of a line
Suitable Grade Level
High School
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