a) What equation is used to find the vertex form of a parabola with the vertex (h, k)?

WHAT DOES THIS MEAN????? PLZ HELP AND ALSO ANSWER MY OTHER QUESTIONS FROM BEFORE THANK YOU

Respuesta :

y=ax2+bx+c . In this equation, the vertex of the parabola is the point (h,k) . You can see how this relates to the standard equation by multiplying it out: y=a(x−h)(x−h)+ky=ax2−2ahx+ah2+k .