For each statement, decide whether it represents a linear…

  For each statement, decide whether it represents a linear function or an exponential function.   The population decreases by 10% each year. The population increases by 11 every 13 years. The population quadruples every 5 years. The population decreases by 10 each year. The population increases by a factor of each year. The population decreases by 13% every 11 years. The population increases by 12% each year. The population increases by 12 each year.    

A 38-year-old woman is taken to the physician because of unc…

A 38-year-old woman is taken to the physician because of uncontrolled movements of the arms, legs, head, face, and upper body. These symptoms have increased progressively over the past 12 months. She is also depressed and irritable, and she repeats the same question 6 times during the 30-minute office visit. Gene analyses show expansion of a CAG triplet repeat on chromosome 4. The MOST likely diagnosis is: