Question

use the completed-square form x^2-8x-5 to write down the vertex of the parabola y=x^2-8x-5

Answer 1

U can see that if u put in completed square form, u can just "read" the information about the vertex directly from the equation.

Answer 2

eg (x-4)^2....and u see the 4 already.

Answer 3

thank u