Math Problem Statement
Write the equation of the line that passes through the points left parenthesis, minus, 3, comma, minus, 5, right parenthesis(−3,−5) and left parenthesis, minus, 2, comma, minus, 4, right parenthesis(−2,−4). Put your answer in fully simplified point-slope form, unless it is a vertical or horizontal line.
Solution
To find the equation of the line passing through the points and , we'll use the point-slope form of the equation of a line, which is given by:
where is a point on the line, and is the slope of the line.
Step 1: Calculate the slope ()
The slope of a line passing through two points and is calculated as:
Substituting the coordinates of the points and :
Step 2: Use the point-slope form
Now that we have the slope , we can use one of the points, say , to write the equation of the line:
Simplifying:
This is the point-slope form of the equation. To fully simplify it:
Finally, subtract 5 from both sides:
Final Answer:
The equation of the line in fully simplified form is:
Would you like more details or have any questions? Here are 5 related questions to consider:
- How do you convert the equation of a line from point-slope form to slope-intercept form?
- What is the general formula for finding the distance between two points?
- How can you determine if two lines are parallel or perpendicular?
- What is the significance of the slope in the equation of a line?
- How can you find the y-intercept of a line given two points?
Tip: Always check the slope calculation carefully to ensure accuracy when forming the equation of a line.
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Math Problem Analysis
Mathematical Concepts
Coordinate Geometry
Equation of a Line
Slope
Formulas
Point-slope form of a line
Theorems
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Suitable Grade Level
Grades 7-9
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