Math Problem Statement

Write the equation of a line that is parallel to [{y=-7}] and that passes through the point [{(7,5)}].

Solution

The given equation of the line is:

y=7y = -7

This represents a horizontal line at y=7y = -7. A line parallel to it must also be horizontal, meaning it will have the same form:

y=cy = c

Since the new line passes through the point (7,5)(7,5), its equation is:

y=5y = 5

Final Answer:

y=5y = 5

Would you like a detailed explanation on why parallel horizontal lines have the same form?


Here are five related questions to explore further:

  1. What is the equation of a line perpendicular to y=7y = -7 passing through (7,5)(7,5)?
  2. How do you find the equation of a line parallel to a given vertical line?
  3. How do you determine the slope of a horizontal and vertical line?
  4. Can a horizontal line ever be written in point-slope form?
  5. How do you find the distance between two parallel horizontal lines?

Tip: The slope of a horizontal line is always zero because it does not rise or fall as xx changes.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Parallel Lines
Horizontal Lines

Formulas

y = c (equation of horizontal lines)

Theorems

Parallel lines have equal slopes
Horizontal lines have slope = 0

Suitable Grade Level

Grades 7-9