Answer:
The graph of the function has three vertical asymptotes
Explanation:
we have the function

we know that
To find the vertical asymptotes of a rational function, simply set the denominator equal to 0 and solve for x.
so

The values of x are x=-1,x=0, x=7
using a graphing tool
see the attached figure to better understand the problem
therefore
The graph of the function has three vertical asymptotes