Math Problem Statement

What is the equation of the line that passes through the point (-6, -8) and has a slope of 1/2?

Solution

The problem asks for the equation of a line passing through the point (6,8)(-6, -8) and having a slope of 12\frac{1}{2}.

We use the point-slope form of a line, which is given by:

yy1=m(xx1)y - y_1 = m(x - x_1)

where:

  • (x1,y1)(x_1, y_1) is a point on the line,
  • mm is the slope.

Step-by-step solution:

  1. Substitute x1=6x_1 = -6, y1=8y_1 = -8, and m=12m = \frac{1}{2} into the formula: y(8)=12(x(6))y - (-8) = \frac{1}{2}(x - (-6))

  2. Simplify: y+8=12(x+6)y + 8 = \frac{1}{2}(x + 6)

  3. Distribute the 12\frac{1}{2}: y+8=12x+3y + 8 = \frac{1}{2}x + 3

  4. Isolate yy to get the equation in slope-intercept form (y=mx+by = mx + b): y=12x+38y = \frac{1}{2}x + 3 - 8

  5. Simplify further: y=12x5y = \frac{1}{2}x - 5

Final Answer:

The equation of the line is: y=12x5y = \frac{1}{2}x - 5


Would you like me to provide more details or graph this equation for you?

Here are 5 related questions to practice further:

  1. How do you convert a line equation from point-slope form to standard form?
  2. What is the equation of a line parallel to this one that passes through a different point, such as (2,3)(2, 3)?
  3. How do you find the y-intercept of a line given its equation in slope-intercept form?
  4. What is the equation of a line perpendicular to this one that passes through the point (6,8)(-6, -8)?
  5. How can you determine if a given point lies on this line?

Tip: Always verify your final equation by substituting the given point to ensure it satisfies the equation.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Point-Slope Form
Slope-Intercept Form

Formulas

Point-Slope Form: y - y1 = m(x - x1)
Slope-Intercept Form: y = mx + b

Theorems

Concept of slope and linear equations

Suitable Grade Level

Grades 8-10