This is the question

Analyze and sketch a graph of the function. Find any intercepts, relative extrema, points of inflection, and asymptotes. (If an answer does not exist, enter DNE.)

y=x

x²+4

intercept(x,y)=relative minimum(x,y)=relative maximum(x,y)=points of inflection(x,y)=(smallestx-value)(x,y)=(x,y)=(largestx-value)

Find the equations of the asymptotes. (Enter your answers as a comma-separated list of equations.)