Graphs of Proportional Relationships Practice

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Using the points shown in the graph, identify the constant of proportionality for this graph.

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1 answer

To determine the constant of proportionality from a graph, you'll typically look for a set of points that show a linear relationship passing through the origin (0,0).

The constant of proportionality (often denoted as \( k \)) is found by applying the formula:

\[ k = \frac{y}{x} \]

for the points on the line.

  1. Identify a point (x, y) on the graph.
  2. Substitute the x and y values into the formula to find \( k \).

For example, if you have the point (2, 4), then:

\[ k = \frac{4}{2} = 2 \]

Please provide the specific points or values from the graph to calculate the constant of proportionality accurately.