To begin a football game, a kicker has to kick off. The football follows the path h(x)=−130x(x−61)


(
𝑥
)
=

1
30
𝑥
(
𝑥

61
)
, where h(x)

(
𝑥
)
is the height of the football and x is the horizontal distance it has traveled in yards. Solve the equation to determine how far the ball will have traveled when it hits the ground.

0=−130x(x−61)
0
=

1
30
𝑥
(
𝑥

61
)

(1 point)
The ball will have traveled yards before hitting the ground.

1 answer

To determine how far the ball will have traveled when it hits the ground, we set the height function h(x) equal to zero:

0=130x(x61)

This equation can be solved by factoring:

  1. Factor out 130: 0=130x(x61)

This gives us two potential solutions:

  1. x=0
  2. x61=0 which simplifies to x=61

Thus, the ball will hit the ground at two positions:

  • when x=0 yards (which is the starting point)
  • and when x=61 yards.

Therefore, the ball will have traveled: 61 yards before hitting the ground.