Math Problem Statement
Find the equation of a line perpendicular toy, equals, 2, x, minus, 6y=2x−6that passes through the point left parenthesis, minus, 8, comma, minus, 2, right parenthesis(−8,−2).
Solution
We are tasked with finding the equation of a line that is perpendicular to the line and passes through the point .
Step 1: Find the slope of the given line
The equation of the given line is in the slope-intercept form , where is the slope. For the given equation:
Here, the slope .
Step 2: Find the slope of the perpendicular line
Lines that are perpendicular have slopes that are negative reciprocals of each other. If the slope of the given line is , the slope of the perpendicular line will be:
Step 3: Use the point-slope form of a line
The point-slope form of a line is:
where is a point on the line and is the slope. We know the slope of the perpendicular line is , and it passes through the point .
Substitute , , and into the equation:
Simplify:
Step 4: Simplify the equation
Distribute the slope on the right-hand side:
Subtract 2 from both sides to isolate :
Final Answer:
The equation of the line perpendicular to that passes through the point is:
Would you like more details or have any questions?
Here are 5 related questions you can explore:
- How do you find the equation of a line parallel to a given line?
- What is the general form of the equation of a line?
- How do you convert the slope-intercept form to standard form?
- How do you calculate the distance between a point and a line?
- What is the relationship between slopes of perpendicular lines?
Tip: When dealing with perpendicular lines, always remember their slopes are negative reciprocals of each other.
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Perpendicular Lines
Formulas
Slope-intercept form: y = mx + b
Point-slope form: y - y1 = m(x - x1)
Negative reciprocal for perpendicular slopes: m1 * m2 = -1
Theorems
Properties of perpendicular lines in coordinate geometry
Suitable Grade Level
Grades 8-10
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