Thursday

October 2, 2014

October 2, 2014

Posted by **Mary18** on Saturday, April 14, 2012 at 7:27pm.

A football player punts a ball. The path of the ball can be modeled by the equation y = -0.004x^2 + x +2.5, where x is the horizontal distance, in feet, the ball travels and y is the height in feet, of the ball. How far from the football player will the ball land? Round to the nearest tenth of a foot.

- math -
**Reiny**, Saturday, April 14, 2012 at 8:52pmHere is a graph showing the path of the ball

http://www.wolframalpha.com/input/?i=0%3D+-0.004x%5E2+%2B+x+%2B2.5

So the x-intercept would be the distance covered

so -0.004x^2 + x +2.5 = 0

use the quadratice equation were

a = -.004, b = 1, and c = 2.5

x = (-1 ± √1.04)/-.008

= appr. 252.8 or a negative

**Answer this Question**

**Related Questions**

Math - We are studying Quadratic formula: A football player punts a ball. The ...

Physics - A football player punts the football so that it will have a hang time ...

Physics - A football player punts the ball at a 45.0o angle. Without an effect ...

physics - For a football player bending the ball around a defensive wall, state ...

Physics - A football player throws a ball with a horizontal distance of 31.0 m ...

calculus - I need help with this problem: The path traveled by a golf ball with ...

physics - A football, if it was kicked when initially at rest, is inflated such ...

Physics - A 69.5kg football player is gliding across very smooth ice at 2.15m/s...

Physics - A 69.5kg football player is gliding across very smooth ice at 2.15m/s...

Physics - A 69.5kg football player is gliding across very smooth ice at 2.15m/s...