Over what interval is the graph of f(x) = –(x + 8)2 – 1 decreasing?

(negative 8, infinity)
(8, infinity)
(negative infinity, 8)
(negative infinity, negative 8)

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

Which of the following graphs could represent a quartic function?