S = 12t and S = 490t^2 What do they mean?

Question

S = 12t, where S = displacement ant t = time (in seconds)

S = 490t^2, where S = displacement and t = time (in seconds)
What do the two equations mean here? I don't understand what they want to mean here. I am confused.
Could you draw the graphs in support of the two equations above?
What I only know from these equations S = displacement and t = time in seconds

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Answer 1 · 2017-11-18T14:47:28

#S=12t# is a uniform motion with acceleration equal to zero.
#S=490t^2# is a uniformly ACCELERATED motion with acceleration#!=0#

Both equations tells you how much you move each second.

Have a look:
enter image source here