Question

The graph below represents the motion of a car.

what is that average speed of the car?
A) 0.4 km/hr
B) 2.5 km/hr
C) 14 km/hr
D) 40) km/hr​

Answer 1

A) 0.4 km/hr

Step-by-step explanation:

To find the average speed of the car, we have to find the slope of the graph.

We start by locating points. From the graph;

• (x, y) (0,0)
• (x, y) (0,4)

Then we use the relationship:

`m \: = \: (change \: in \: y)/(change \: in \: x)`

Substituting our values;

`m \: = ((4 \: - \: 0) \: km)/((10 \: - \: 0) \: hr ) \\ = 0.4 (km)/(hr)`

Therefore, the average speed of the car is 0.4 km/hr. Hence the best choice is (A).