You travel from point a to point b in a car moving at a constant speed of 70 km/h. then you travel the same distance from point b to another point c, moving at a constant speed of 90 km/h. is your average speed for the entire trip from a to c equal to 80 km/h? explain why or why not.

Yes, the average speed for the entire trip from A to C is equal to

Step-by-step explanation:

The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector quantity, and average velocity can be defined as the displacement divided by the time. For the special case of straight line motion in the x direction, the average velocity takes the form:

If the beginning and ending velocities for the motion are known, and the acceleration is constant, the average velocity can also be expressed as:

We Know that:

Replacing the values:

sine

step-by-step explanation:

easy its decreasing

step-by-step explanation:

because its top point is at the to of the graph on the left side (atleast from the veiw i see it) now if that top point wast in the lower part of the graph it would be increasing hope this have a nice day