Slope: 
<u>Use the slope formula</u>

<u>Note</u>
<u></u>
<u></u>
300miles÷15=20
Efficient:20miles/gallons of gas
Answer: no correlation .C
Step-by-step explanation: there is no correlation if the change on X has no impact on Y
hope this helped
ANSWER
(-3,3)
EXPLANATION
The given function is

Expand

Rewrite in the form:

This implies that,


Complete the square to get,




The function is now in the form:

where (h,k) =(-3,3) is the vertex
The busiest night had occupancy of 76%
During the World Series, the occupancy increased by 21% to a new record.
The new record is
76% + (76%)*0.21 = 76%*1.21 = 91.96%
Answer: 91.96%