Choose the function in which whose graph is given below

The function which best describe the graph is:

                          C.   y=csc x

By looking at the graph we observe that the graph repeats itself after every 2π i.e. the period of the function is 2π.

Also, we know that the function " tan x " and " cot x " have a period of π.

Hence, option: A and option: D is discarded.

Now by looking at the graph we observe that when x → 0 then the graph of the function tends to infinity

i.e. when x → 0 then y → ∞

B)

when x=0

then

Hence, option: B is incorrect.

So, we are left with option: C

i.e.

when we plot the graph of this function we observe that it matches the given graph.

         The correct answer is:

               Option: C

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1