important points are labeled on the graph; where the curve looks linear, assume that it is indeed a straight line.

Choose the best description of the car's behavior over the provided time interval. again at time $\backslash ($ t$=104\backslash ).$

$\backslash (\backslash$checkmark $\backslash )$ O again at time $\backslash ($ t$=104\backslash ).$

O None of these. None of these

Find the slope of the line between the points $\backslash ((57,63\mathrm{.}8)\backslash )$ and $\backslash ((104,106\mathrm{.}8)\backslash ).$ Include units in your answer.

Slope $=($i$)$

What does the slope represent?

$\backslash (\backslash$checkmark $\backslash )($i$)$ average velocity. The average velocity of the car on the interval $[57,104]$

ospeed. The speed of the car at time $\backslash ($ t$=57\backslash )$

O distance. The distance that the car travels between time $\backslash ($ t$=57\backslash )$ and time $\backslash ($ t$=104\backslash )$

grade. The grade of the road between mile $63\mathrm{.}8$ and mile $106\mathrm{.}8$

O None of these. None of these

Find the average rate of change of the car's position on the interval $[68,104\backslash (]\backslash ).$ Include units in your answer.

Average rate of change $\backslash (=\backslash )($i$).$

Estimate the instantaneous rate of change of the car's position at the moment $\backslash ($ t$=80\backslash ).$ Include units in your answer.

Instantaneous rate of change $\backslash (=\backslash )$