The amount of energy used by a large office building is modeled by
E(t) = 150sin(π/12)(t − 8) + 775, where E is the energy in kilowatt-hours, and t is the time in hours after midnight.

During what time in the day is the energy use 850 kilowatt-hours?

Arepresentative from plan 1 wants to use the graph below to sell health plans for his company. how might the graph be redrawn to emphasize the difference between the cost per doctor visit for each of the three plans? the scale on the y-axis could be changed to 0–100. the scale on the y-axis could be changed to 25–40. the interval of the y-axis could be changed to count by 5s. the interval of the y-axis could be changed to count by 20s.