Question

Instructions: For the following real-world problem, solve using any method. Use what you’ve learned to determine which method would be best. Put your answer in the context of the problem and determine the appropriate final answer.

Answer 1

• x = 11 or –11

,

• x = 11 feet

Step-by-step explanation

Trayectory:

`-x^2+121=0`

To know the solutions to the equation, we have to solve for x:

`\begin{gathered} -x^2+121=0 \\ x^2=121 \end{gathered}`

If we get the square root from both sides we get:

`√(x^2)=√(121)`
`x_1=11`
`x_2=-11`

However, in the context of this problem, the solution that makes sense is 11ft (positive) as it is the distance from Laura to where the ball lands.