Answer: 1848 feet per minute
<u>Step-by-step explanation:</u>

Answer:
The discriminant is equal to zero
Step-by-step explanation:
If x=6 is the only x-intercept of the graph of a quadratic equation, the it means the quadratic equation has a repeated root.
When a quadratic equation has a repeated root, it means its discriminant is zero.
This means that
