Math Problem Statement

Find the slope of the line through the points (-1, -5) and (1, 2) and then graph the line.

Solution

The problem requires finding the slope of the line passing through the points (1,5)(-1, -5) and (1,2)(1, 2), and then graphing the line.

Step 1: Calculate the Slope

The formula to calculate the slope mm of a line passing through two points (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2) is:

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

For the points (1,5)(-1, -5) and (1,2)(1, 2):

m=2(5)1(1)=2+51+1=72m = \frac{2 - (-5)}{1 - (-1)} = \frac{2 + 5}{1 + 1} = \frac{7}{2}

So, the slope mm is 72\frac{7}{2}.

Step 2: Graph the Line

  1. Plot the Points: Mark the points (1,5)(-1, -5) and (1,2)(1, 2) on the graph.
  2. Draw the Line: Use a ruler to connect the two points to draw the line. The line should pass through both points and have the slope 72\frac{7}{2}.

Verification

The graph in the image confirms that the line has been correctly plotted with the slope 72\frac{7}{2}.

Would you like to explore this further or have any other questions? Here are some related questions you might find interesting:

  1. How do you calculate the slope of a line when given two points?
  2. What does the slope of a line represent in a real-world context?
  3. How do you find the equation of a line given its slope and a point on the line?
  4. Can the slope of a line be negative? If so, what does it indicate?
  5. What are the different forms of linear equations?

Tip: When graphing a line, it helps to start by plotting the given points first and then draw the line using a straightedge to ensure accuracy.

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Math Problem Analysis

Mathematical Concepts

Slope of a Line
Coordinate Geometry

Formulas

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

Theorems

Linearity of slope between two points

Suitable Grade Level

Grades 8-10