Algebra
posted by Mary on .
Find the vertex, the line of symmetry, the maximum or minimum of the quadratic function, and graph the function.
f(x)=x^24x3
What is the vertex? (Type an ordered pair)
What is the equation of the line of symmetry?
x=
What is the maximum/minimum of f(x)?
Is the value, f(2)= 7 a minimum or maximum?

F(x) = X^2 4X 3.
V(h , k),
h = Xv = b/2a = 4/2 = 2,
k = Yv = F(2) = 2^2 4*2 3 = 7,
V(2 , 7).
Line of sym.: X = h = 2.
F(2) = 7 = min. (Eq opens upward)