Math Problem Statement

Write an equation in point-slope form of the line that passes through 2 points; (3, 4) & (-6, 7).

Solution

To write the equation of a line in point-slope form, we first need to determine the slope of the line passing through the points (3,4)(3, 4) and (6,7)(-6, 7).

Step 1: Calculate the slope (m)

The formula for the slope is:

m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}

Substitute the given points: m=7463=39=13m = \frac{7 - 4}{-6 - 3} = \frac{3}{-9} = -\frac{1}{3}

Step 2: Use the point-slope form equation

The point-slope form of a line is:

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

Using the slope m=13m = -\frac{1}{3} and one of the points, say (3,4)(3, 4), we substitute these values into the equation:

y4=13(x3)y - 4 = -\frac{1}{3}(x - 3)

This is the equation of the line in point-slope form.

Would you like further details or have any questions?

Here are 5 related questions:

  1. How do you convert this equation into slope-intercept form?
  2. Can the other point (6,7)(-6, 7) be used to write the equation in point-slope form?
  3. How do you check if a point lies on a line given its equation?
  4. What is the relationship between the slope and the angle of inclination of a line?
  5. How do parallel lines relate in terms of slope?

Tip: In point-slope form, you can use any point on the line, not just one particular point.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Point-Slope Form
Slopes of Lines

Formulas

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

Theorems

Slope-Intercept Theorem
Properties of Lines

Suitable Grade Level

Grades 8-10