Final answer:
The graph of the function y=1/x cannot intersect the horizontal asymptote at the x-axis because as x approaches infinity or negative infinity, y approaches zero, but never actually reaches it, which is a fundamental property of asymptotes.
Step-by-step explanation:
The function y = 1/x represents a hyperbola, which has two asymptotes: a vertical asymptote along the y-axis (x=0) and a horizontal asymptote along the x-axis as y approaches zero. By definition, an asymptote is a line that a graph approaches but never actually intersects. Therefore, the graph of the function y=1/x will never intersect the x-axis (horizontal asymptote) because as x gets larger or smaller (towards infinity or negative infinity), the value of y gets closer and closer to zero, but never actually reaches it.