Answer:
Average rate of change=\displaystyle \frac{\text{Change in output}}{\text{Change in input}}
Change in input
Change in output
=\displaystyle \frac{\Delta y}{\Delta x}
Δx
Δy
=\displaystyle \frac{{y}_{2}-{y}_{1}}{{x}_{2}-{x}_{1}}
x
2
−x
1
y
2
−y
1
=\displaystyle \frac{f\left({x}_{2}\right)-f\left({x}_{1}\right)}{{x}_{2}-{x}_{1}}
x
2
−x
1
f(x
2
)−f(x
1
)
Answer:
C. 8 miles per hour
Step-by-step explanation:
It takes Diego
of an hour to complete the lap =
x 1 hour =
hour
Distance of the track = 1 mile long
The speed of an object expresses the ratio of distance moved to time taken to cover the distance.
i.e speed = 
= 
= 8
Speed = 8 mile per hour
Therefore, Diego's bike has a speed of 8 miles per hour.
The correct answer would be : A.) 2√6+6
I hope that this helps you !
All that is needed is that it is 270