The bar graph shows the estimated number of calories per day needed to maintain energy balance for various gender and age groups for sedentary lifestyles. (Sedentary means a lifestyle that includes only the light physical activity associated with typical day-to-day life.) The mathematical model F= - 83x? + 654x + 617 describes the number of calories needed per day, F, by females in age group x with sedentary lifestyles. According to the model, how many calories per day are needed by females between the ages of 19 and 30, inclusive, with this lifestyle? Does this underestimate or overestimate the number shown by the graph? By how much? Calories Needed to Maintain Energy Balance for Sedentary Lifestyles 3200-Females Males Group 4 Group 5 2404 Group 3 Group 6 fli Group 2 2209 2400- Group 116721803 1912 1600.1392 2193 1828 1993 1732| 1480 1113 800- 0- 4-8 9-13 14-18 19-30 31-50 51+ Age Range ..... According to the model, how many calories per day are needed by females between the ages of 19 and 30, inclusive, with this lifestyle? 1905 (Type a whole number.) Does the model underestimate or overestimate the number shown by the graph? By how much? The model F = - 83x2 + 654x + 617 underestimates the actual amount by approximately calories. (Type a whole number.) overestimates underestimates Calories per Day

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