Direct Variation
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Lesson Description:
Taking a direct variation relationship and finding new values of unknown quantities based on the k of variation. Other solution method is equivalent ratios and usage of cross products.
Questions answered by this video:
- What is direct variation?
- What are some examples of direct variation?
- What is the equation for basic direct variation?
- How do you write an equation for direct variation from a word statement?
- If a tub is being filled up at 1.5 gallons per minute, how long will it take to fill a 45-gallon tub?
- What is a variation constant and how do you find it?
- How do you solve a direct variation word problem using equivalent fractions and cross multiplication?
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Staff Review
This lesson explains some examples of direct variation, how to write direct variation equations from the scenarios, and finally, how to solve a direct variation problem. The concepts in this lesson are explained very well.
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