Math Problem Statement

What is the slope of this line?

Solution

To determine the slope of the line, we need to use the slope formula:

m=ΔyΔx=y2y1x2x1,m = \frac{\Delta y}{\Delta x} = \frac{y_2 - y_1}{x_2 - x_1}, where (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2) are two points on the line.

From the graph:

  • One point is (0,8)(0, -8) (the line crosses the y-axis at -8).
  • Another point is (8,8)(8, 8).

Calculating the slope:

m=y2y1x2x1=8(8)80.m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{8 - (-8)}{8 - 0}. Simplify the numerator and denominator: m=8+88=168=2.m = \frac{8 + 8}{8} = \frac{16}{8} = 2.

Final Answer:

The slope of the line is m=2m = 2.


Would you like a detailed explanation of why the slope formula works? Let me know if you have any questions!

Here are 5 related questions to explore:

  1. How do you determine the slope of a horizontal or vertical line?
  2. What does a negative slope look like on a graph?
  3. How do you write the equation of a line given its slope and one point?
  4. What is the y-intercept of this line, and how does it relate to the equation?
  5. How do you find the slope between two points that are not given on the graph?

Tip: Always remember that a positive slope means the line rises to the right, while a negative slope falls to the right.

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Math Problem Analysis

Mathematical Concepts

Coordinate Geometry
Slope of a Line
Linear Equations

Formulas

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

Theorems

The slope of a line describes its steepness and direction.

Suitable Grade Level

Grades 8-10