Math Problem Statement

A line contains the points (−3, 7) and (−5, −2) . What is the slope of the line?

Solution

To find the slope of the line that passes through two points (3,7)(-3, 7) and (5,2)(-5, -2), we use the slope formula:

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

Here, the points are:

  • (x1,y1)=(3,7)(x_1, y_1) = (-3, 7)
  • (x2,y2)=(5,2)(x_2, y_2) = (-5, -2)

Substituting these into the slope formula:

m=275(3)=95+3=92=92m = \frac{-2 - 7}{-5 - (-3)} = \frac{-9}{-5 + 3} = \frac{-9}{-2} = \frac{9}{2}

So, the slope of the line is:

m=92m = \frac{9}{2}

Would you like more details, or do you have any questions?

Here are 5 related questions:

  1. How do you find the equation of a line given its slope and a point?
  2. Can you find the equation of the line passing through (3,7)(-3, 7) and (5,2)(-5, -2)?
  3. What is the slope of a vertical line?
  4. How does the slope of a line relate to its steepness?
  5. Can the slope be negative? If so, what does a negative slope represent?

Tip:

Always remember that the slope tells you how much the line rises (or falls) for each unit you move horizontally.

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Math Problem Analysis

Mathematical Concepts

Coordinate Geometry
Slope of a Line

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)

Theorems

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Suitable Grade Level

Grades 8-10