Find the vertex for f(X)=-x^2+8x+6
My answer is (4,22)Is it correct? If I am correct then what is the line of symmetry?
y = ax^2 + bx + c.
axis of symmetry= x = -b/(2a) (basically the x-coordinate)
view the solution to a similar problem step-by-step (by clicking the down green arrow) if you're still struggling with finding the vertex and line of symmetry:
http://hotmath.com/tutor/?pid=genericalg1_10_2_QuadraticEquations_3_905>_index=genericalg1:10:2:1