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?

Answer 1

A 'zero' of f(x) is a solution to the equation
f(x) = 0
Solve
-x^2 - 5x + 50 = 0

Answer 2

that isnt an option;(

Answer 3

provide your options

Answer 4

is a zero of f(x), and what does it represent?
x = 5; the diver jumps in the pool at 5 feet per second x = 10; the diver jumps in the pool at 10 feet per second x = 10; the diver hits the water 10 feet horizontally from the board x = 5; the diver hits the water 5 feet away horizontally from the board

Answer 5

a
b
c
d

Answer 6

@amorfide

Answer 7

well first you have to figure out what value of x makes f(x) = 0
do this

Answer 8

im so lost

Answer 9

factorise the quadratic or use the quadratic formula