### Home > CALC > Chapter 3 > Lesson 3.2.1 > Problem3-50

3-50.

The four places where events take place are the places where the slope changes:
1) The spot where the graph flattens out momentarily
2) The long horizontal section of the graph
3) Where the slope is negative for a short time
4) Where the slope is negative for a long time

$\text{slope }= \frac{\text{rise}}{\text{run}}=\frac{\Delta y}{\Delta x}= \frac{\text{units on the }y\text{ axis}}{\text{units on the }x\text{ axis}}=\underline{\ \ \ \ \ \ \ \ \ \ \ \ }$

moving forward → positive slope
moving backward → negative slope
stopping → __________

If velocity is slope of the distance graph... so speeding would mean steep slope. Be mindful that speeding could mean steep-and-positive or steep-and-negative.

Refer to the hint in part (b).