Math Problem Statement

How to solve

Write the slope-intercept form of the equation of the line described. Through: (3, 5), parallel to y = -2

Solution

The problem asks for the equation of a line in slope-intercept form that passes through a given point and is parallel to a specified line.

Problem Details

The task is to find the slope-intercept form of a line that:

  1. Passes through the point (3,5)(3, 5).
  2. Is parallel to the line y=2y = -2.

Solution Steps

  1. Identify the Slope of the Given Line:

    • The line y=2y = -2 is a horizontal line, which has a slope of 00.
    • Since the new line is parallel to this one, it will also have a slope of 00.
  2. Set Up the Equation Using the Slope-Intercept Form:

    • The slope-intercept form is y=mx+by = mx + b, where mm is the slope.
    • Since m=0m = 0, our equation so far is: y=0x+by=by = 0 \cdot x + b \Rightarrow y = b
  3. Find the Value of bb Using the Given Point (3,5)(3, 5):

    • Substitute x=3x = 3 and y=5y = 5 into the equation y=by = b: 5=b5 = b
  4. Write the Final Equation:

    • The equation of the line is: y=5y = 5

Answer

The slope-intercept form of the line that passes through (3,5)(3, 5) and is parallel to y=2y = -2 is: y=5y = 5

Would you like more details on this solution or have any questions?


Here are some related questions you might find useful:

  1. How do you find the slope of a line given two points?
  2. What is the general approach for finding a line parallel to a given line?
  3. How would you find a line perpendicular to a given line?
  4. Can a vertical line be expressed in slope-intercept form?
  5. How do you convert between different forms of linear equations?

Tip: For any line parallel to a given one, use the same slope and adjust only the intercept.

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Math Problem Analysis

Mathematical Concepts

Algebra
Slope-Intercept Form
Parallel Lines

Formulas

Slope-intercept form: y = mx + b

Theorems

Parallel lines have equal slopes

Suitable Grade Level

Grades 8-10