Problema Solution
The function f(x) = -x2 - 9x + 10 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 provided by our tutors
lets find the zero of the function: f(x) = -x^2 - 9x + 10
-x^2 - 9x + 10 = 0
by solving we find:
x1 = 1
x2 = -10
click here to see the step by step solution of the quadratic equation:
Since there is no negative distance, we only have x = 1
the zero of f(x), x = 1 means the diver hits the water 1 foot away horizontally from the board.