F(x) = x^2. What is g(x)?

pls help

How do i do this activity, is appreciated

Find the roots of the equation below. x^2 - 6 + 9 = 0

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.