Today in class students figured out how to recognize scale factor relationships with or without units of measure.
Answers to HW: 1. E would work best. A, B, and D will not fit on the page, and C or F are a bit small 2. The scale is 1 inch = 9 feet 3. A and D 4. 36 square units. Use the scale factor squared times the original area. The scale factor is 2 and 2 x 2 = 4 and 4 x the original area of 9 = 36 5. a. $12.50 because $1.25 x 10 = $12.50 b. $25 because 1.25 x 20 = 25 c. $62.50 because 1.25 x 50 = 62.5 6. a. number of batches cups of water cups of detergent 1 6 1 2 12 2 3 18 3 4 24 4 b. 8 48 8 You could use the unit rate of 6 cups of water per batch x 8 batches, or you could double the amount used for 4 batches to find the answer.
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