The length of a shadow cast by a tree varies directly with t...

Question Analysis
This question evaluates the application of direct variation in a geometric context. The problem requires finding the length of a shadow cast by a tree of a different height based on a given height and shadow length.

Key Concept Explanation
Direct variation is a relationship where one variable is a constant multiple of the other. Here, the length of the shadow (S) varies directly with the height of the tree (H), which can be expressed as , where is the constant of variation.

Step-by-step Solution
1. Identify the given values: feet for feet.
2. Use the direct variation formula to find the constant of variation :

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Algebra-2

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