Today in class students found that not all data in a table is proportionate. Proportionate data has a constant of proportionality or unit rate that you use to multiply.
Answers to HW: 1.a. Not proportional since the ratio of distance to listener to sound level is not always the same. b. Not proportional since the ratio of volume to cost is not always the same. 2. distance traveled price 9/10 1.80 2 2.90 3 1/10 4.00 10 10.90 This is not proportional; the ratio of distance to price is not always the same 3. The turtle data may be proportional. d = 54 x t where d is distance traveled and t is time in minutes. 4.a. 7 (or 1/7) b. 120 (or 1/120) c. 1/25 (or 25) d. 2 1/2 (or 5/2) 5. Kiran is correct. If the figure length and width are scaled by 2, the diagonal will be scaled by 2 as well.
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