Question

The function f(x) = -x2 - 5x + 50 shows the relationship between the vertical distance of a diver from a pool's surface f(x), in feet, and the horizontal distance x, in feet, of a diver from the diving board. What is a zero of f(x), and what does it represent?

A) x = 5; the diver jumps in the pool at 5 feet per second
B) x = 10; the diver jumps in the pool at 10 feet per second
C) x = 10; the diver hits the water 10 feet horizontally from the board
D)x = 5; the diver hits the water 5 feet away horizontally from the board

Answer 1

@chosenmatt @bohotness

Answer 2

i thnk c>/

Answer 3

use this http://assets.openstudy.com/updates/attachments/526beb58e4b0ff172475edc7-robtobey-1382806398315-basedboyisaiah.pdf