Ebony picks up her friend who lives in another city and they head north on a road trip. Ebony looks at a map and sees that after 7 hours of driving, they are passing mileage marker 282 on Highway 415. After driving for 9 hours, they pass mileage marker 362.
What is Ebony's average rate during the road trip?
miles per hour
Question 6
Find the average rate of change of the function $f(x) = \frac{3}{2x - 6}$, on the interval $[2, 4]$.
Avergae rate of change =
Give an exact answer.