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?

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 1

-x2 - 5x + 50 = 0 solve for x

Answer 2

x=−10,5

Answer 3

thats the answer it gave me

Answer 4

yep :)
and since you don't have a -10 in your options
5
then "horizontal distance x"

Answer 5

so the answer is A.

Answer 6

"horizontal distance is x"

Answer 7

oh

Answer 8

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


so whichone of this is the answer

Answer 9

well we figured out x = 5
then "horizontal distance is x"
^ horizontal

Answer 10

thank you