Math Problem Statement

Find an equation for the line with the given property. (a) Passes through the points (6, 5) and (1, −5)

Solution

To find the equation of the line passing through the points (6,5)(6, 5) and (1,5)(1, -5), follow these steps:

1. Calculate the Slope (mm):

The slope of a line passing through two points (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2) is given by: m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}

Substitute the given points (6,5)(6, 5) and (1,5)(1, -5): m=5516=105=2m = \frac{-5 - 5}{1 - 6} = \frac{-10}{-5} = 2

2. Use the Point-Slope Form to Find the Equation:

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

Using the slope m=2m = 2 and one of the points, say (6,5)(6, 5): y5=2(x6)y - 5 = 2(x - 6)

3. Simplify to the Slope-Intercept Form:

Expand and simplify this equation to get it in the slope-intercept form y=mx+by = mx + b: y5=2x12y - 5 = 2x - 12 y=2x12+5y = 2x - 12 + 5 y=2x7y = 2x - 7

So, the equation of the line passing through the points (6,5)(6, 5) and (1,5)(1, -5) is: y=2x7\boxed{y = 2x - 7}

Would you like more details or have any questions?

Related Questions:

  1. How do you find the equation of a line given a slope and one point?
  2. How can you determine if two lines are parallel or perpendicular?
  3. What is the point-slope form of a line, and how is it derived?
  4. How can you find the x-intercept and y-intercept of a line from its equation?
  5. How do you convert a linear equation from standard form to slope-intercept form?

Tip: Always verify your calculations by substituting the coordinates of the points back into the final equation to ensure they satisfy it.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Slope-Intercept Form
Point-Slope Form

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)
Point-slope form: y - y1 = m(x - x1)
Slope-intercept form: y = mx + b

Theorems

Equation of a line through two points

Suitable Grade Level

Grades 8-10