S(-4,-6) and T (-7,-3); Find R

Which of the following are parts of a sphere

What is the multiple zero and multiplicity of f(x) = (x ? 3)(x ? 3)(x + 5)? multiple zero is 3; multiplicity is 2 multiple zero is 5; multiplicity is 1 multiple zero is ? 5; multiplicity is 1 multiple zero is ? 3; multiplicity is 2

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4