Math Problem Statement

Write an equation in slope-intercept form of the line that passes through the given point (-6, -2) and is parallel to the graph of the given equation y = -2x + 5.

Solution

To solve the problem, let’s proceed step by step.

We are tasked with writing an equation in slope-intercept form of the line that:

  1. Passes through the point (6,2)(-6, -2),
  2. Is parallel to the line y=2x+5y = -2x + 5.

Step 1: Understand the slope of the given line.

The given line equation is: y=2x+5y = -2x + 5 This equation is in slope-intercept form y=mx+by = mx + b, where mm is the slope.

From y=2x+5y = -2x + 5, the slope mm is -2.


Step 2: Use the slope for the new line.

Since the line we are finding is parallel to the given line, it will have the same slope: m=2m = -2


Step 3: Use the point-slope form of a line.

The point-slope form of a line is: yy1=m(xx1)y - y_1 = m(x - x_1) where:

  • m=2m = -2 (the slope),
  • (x1,y1)=(6,2)(x_1, y_1) = (-6, -2) (the point the line passes through).

Substitute these values: y(2)=2(x(6))y - (-2) = -2(x - (-6))

Simplify: y+2=2(x+6)y + 2 = -2(x + 6)


Step 4: Simplify to slope-intercept form y=mx+by = mx + b.

Distribute 2-2 on the right-hand side: y+2=2x12y + 2 = -2x - 12

Subtract 22 from both sides to isolate yy: y=2x14y = -2x - 14


Final Answer:

The equation of the line in slope-intercept form is: y=2x14y = -2x - 14

Let me know if you need further clarification or additional examples!


Related Questions:

  1. What is the difference between slope-intercept form and point-slope form?
  2. How do you determine if two lines are parallel or perpendicular?
  3. How can you write the equation of a line given two points?
  4. What is the significance of the slope in a linear equation?
  5. How do you graph a line using the slope-intercept form?

Tip:

Parallel lines always have the same slope, while perpendicular lines have slopes that are negative reciprocals of each other.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope-Intercept Form
Parallel Lines

Formulas

Slope-intercept form: y = mx + b
Point-slope form: y - y₁ = m(x - x₁)

Theorems

Parallel lines have the same slope

Suitable Grade Level

Grades 8-10