Math Problem Statement
Write an equation for the line
Solution
To write the equation of the line from the graph, we need to find its slope and y-intercept.
From the image, I can see that the line passes through certain points. Let’s break this down:
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Identify two points on the line:
- From the graph, we can observe the line crosses at the point (-4, 3) and (0, 5).
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Find the slope (m): The slope formula is:
Using the points (-4, 3) and (0, 5):
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Write the equation using the point-slope form: The point-slope form of a line is:
Using the point (0, 5) and slope :
Simplifying this:
Thus, the equation of the line is:
Would you like a more detailed explanation or help with any other questions? Here are a few related questions:
- How do you calculate the slope of a line when two points are given?
- What is the difference between the point-slope form and slope-intercept form of a line?
- How can you identify the y-intercept from a graph?
- Can this line be written in standard form?
- How do you graph an equation like ?
Tip: To determine the slope quickly, always try to pick points with integer coordinates to simplify the calculations!
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
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 formula
Point-slope form of a line
Suitable Grade Level
Grades 8-10
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