The vertex form of a function is g(x) = (x – 3)2 + 9. How does the graph of g(x) compare to the graph of the function f(x) = x2?

Respuesta :

in y=a(x-h)^2+k
vertex=(h,k)

f(x)=x^2,
 the vertex is (0,0)
it opens up

g(x)=(x-3)^2+9
vertex is (3,9)
opens up

we have

[tex]g(x)=(x-3)^{2}+9[/tex]

This is the equation of a vertical parabola with vertex at point [tex](3,9)[/tex]

The parabola open upward------> the vertex is a minimum

[tex]f(x)=x^{2}[/tex]

This is the equation of a vertical parabola with vertex at point [tex](0,0)[/tex]

The parabola open upward------> the vertex is a minimum

so

the rule of the translation is

[tex]f(x)------> g(x)[/tex]

[tex](x,y)-----> (x+3,y+9)[/tex]

that means

the translation is [tex]3[/tex] units to the right and [tex]9[/tex] units up

the graph of the function g(x) is the translated graphic of the function f(x) [tex]3[/tex] units to the right and [tex]9[/tex] units up

therefore

the answer is

g(x) is shifted [tex]3[/tex] units right and  [tex]9[/tex]  units up