Identify the slope.

Question image

Understand the Problem

The question is asking us to identify the slope of the line shown in the coordinate graph. Slope is calculated by determining the rise over run between two points on the line.

Answer

The slope of the line is \( m = 1 \).
Answer for screen readers

The slope of the line is ( m = 1 ).

Steps to Solve

  1. Identify Two Points on the Line

From the graph, choose two clear points that the line passes through. Let's select the points ( (0, -2) ) and ( (4, 2) ).

  1. Calculate the Rise

The rise is the change in the ( y )-coordinates between the two points.

Using the points ( (0, -2) ) and ( (4, 2) ):

[ \text{Rise} = y_2 - y_1 = 2 - (-2) = 2 + 2 = 4 ]

  1. Calculate the Run

The run is the change in the ( x )-coordinates between the two points.

Using the same points:

[ \text{Run} = x_2 - x_1 = 4 - 0 = 4 ]

  1. Calculate the Slope

The slope ( m ) is calculated as the rise over run:

[ m = \frac{\text{Rise}}{\text{Run}} = \frac{4}{4} = 1 ]

The slope of the line is ( m = 1 ).

More Information

The slope measures how steep the line is and indicates that for every unit the line rises vertically, it also runs one unit horizontally. This means the line follows an upward trend from left to right, indicating a positive correlation.

Tips

  • Confusing rise and run: Ensure to always subtract the ( y )-coordinates for rise and the ( x )-coordinates for run.
  • Picking points that aren't on the line: Choose points that clearly lie on the line for accurate calculations.

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