Is the universe endless, how and why?

The given statement is true, that is, the universe is endless due to the fact that it is not limited with a specified boundary.

Explanation:

Universe has unimaginable length and width due to the limit of the present day science and technological adaptation because of which we haven’t explored the full universe yet. The world in which we live is the Earth which has been cartographed and studied well along with the Milky Way galaxies.  

But beyond this, there are thousands and millions of galaxies which has not been studied. Then there is a frame of reference of study with the dimensional frame where we have been adept to 3 dimensions only and the dimension is yet to be studied.

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6