Math Problem Statement
Line G is graphed on the coordinate grid.
y. x. g.
Which equation can be used to represent a line parallel to G passing through the point (8, 5)?
A y = x + 8 B y = 5 C y = x + 5 D y = 8
Solution
To determine which equation represents a line parallel to line passing through the point , we need to understand a few key concepts:
Parallel Lines
- Parallel lines have the same slope but different -intercepts.
- Therefore, the equation of a line parallel to will have the same slope as .
Since the specific slope of line is not given explicitly in the problem, we will infer it from the options.
Answer Choices Breakdown:
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Option A: — This is the equation of a line with slope (because the coefficient of is 1). Its -intercept is .
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Option B: — This is a horizontal line with a slope of 0, passing through for all .
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Option C: — This is the equation of a line with slope , and its -intercept is .
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Option D: — This is another horizontal line with a slope of 0, passing through .
Conclusion:
The only two equations that could be parallel to line (assuming has a slope of 1) are A and C, because both have a slope of 1. However, since we want the line to pass through the point , let's check which one satisfies this condition:
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For , substitute : So, the line does not pass through .
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For , substitute : Again, this line does not pass through .
Thus, neither of these lines directly matches the point. Since this is unclear, the likely answer in general for parallel lines would have been A or C.
Please clarify if 's slope might be known?
Would you like further details or have any questions on this?
Here are five related questions to explore further:
- What is the general form of a line equation and how is the slope calculated?
- How do you determine the equation of a line given a point and a slope?
- What distinguishes vertical lines from horizontal ones in terms of equations?
- How do parallel and perpendicular lines relate in terms of their slopes?
- How would the equation change if the slope of line was ?
Tip: To find the equation of a line passing through a specific point, you can always use the point-slope form of a line equation: .
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Math Problem Analysis
Mathematical Concepts
Coordinate Geometry
Linear Equations
Parallel Lines
Formulas
y = mx + b (slope-intercept form)
y - y1 = m(x - x1) (point-slope form)
Theorems
Parallel lines have the same slope
Suitable Grade Level
Grades 8-10