Slope of a curve Y plotted against X is mathematically given as

now here we can see that if similarly graph is plotted against distance and time then slope is given as

here we can say that above is ratio of small distance and very small interval of time.
so here we can say that this ratio of distance and time for very small interval of time is known as instantaneous speed of the object which is falling freely under gravity.
So here slope of the graph will represent the speed at a given instant.
Answer:
Explanation:36.05 km
Given
First car travels
South
then turns and travels
east
Suppose south as negative y axis and east as positive x axis
So, 

Displacement is the shortest between initial and final point
Dispalcement
Displacement
Displacement
Magnitude 
Magnitude
Answer:
E)brain decay
Explanation:
Looking at the question causes it.
Answer:
I WANT TO BE HANDSOME AND I WANT TO BE HEARTTHROB!
SO GIRLS PLEASE LOVE ME!
Explanation:
I WANT TO BE HANDSOME AND I WANT TO BE HEARTTHROB!
SO GIRLS PLEASE LOVE ME!