What are the coordinates of the hole in the graph of the function f(x) ? f(x)=x2−9x−3

Yuri, sam and dani had the same math homework last night, but none of them finished it. yuri finished 3/8 of her homework, sam finished 4/6 of her homework and dani finished 1/2. who finished the most math homework? who finished the least amount?

Restrictions on f(x) = 1/x+5 and g(x) = x-2

Which statements about these triangles is true