Math Problem Statement

Using the slope​ formula, find the slope of the line through the given points. (8,8) and (3,3)

Solution

To find the slope of a line through two points (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2), we use the slope formula:

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

Given points (8,8)(8, 8) and (3,3)(3, 3), let:

  • (x1,y1)=(8,8)(x_1, y_1) = (8, 8)
  • (x2,y2)=(3,3)(x_2, y_2) = (3, 3)

Substitute these values into the formula:

m=3838=55=1m = \frac{3 - 8}{3 - 8} = \frac{-5}{-5} = 1

Thus, the slope of the line through the points (8,8)(8, 8) and (3,3)(3, 3) is:

m=1m = 1

Would you like further details or have any questions?

Here are some related questions to deepen your understanding:

  1. How does changing one of the points affect the slope calculation?
  2. What does a slope of 11 signify about the line's direction?
  3. What would the slope be if the points were (8,3)(8, 3) and (3,8)(3, 8)?
  4. How would you calculate the slope if one point was at the origin?
  5. Can you find the equation of the line that passes through these points?

Tip: When two points have the same yy-value or xx-value, the line is horizontal or vertical, respectively, and the slope will be zero or undefined.

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Math Problem Analysis

Mathematical Concepts

Algebra
Coordinate Geometry
Slope

Formulas

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

Theorems

None required; only the slope formula is used

Suitable Grade Level

Grades 7-9