Question

The regression equation y = 8.6sin(0.24x – 1.88) + 62.8 models the Fahrenheit temperature in a room x hours after midnight. What is the maximum temperature in the room during the first 24 hours?

54.2°F
57.0°F
62.8°F
71.4°F

Answer 1

71.4°F

Explanation:

The maximum is when
`\sin(0.24x-1.88)=1`, yielding a maximum of
`8.6+62.8=71.4`.