Respuesta :

Answer:

B

Step-by-step explanation:

This is a distance versus time graph. The slope on a given interval gives you speed.

So if the slope is going upwards, the speed is increasing which means it isnt constant

If going downwards, the speed decreasing, which means it isn't constant

If forming a horinzontal line, it has slope of 0, which means that it has a constant speed

The only time speed is constant is at 4.

B is the answer

Otras preguntas