Determine the axis of symmetry and the vertex of the given function. y = 2×2 − 12x + 21

Question

Determine the axis of symmetry and the vertex of the given function.
y = 2×2 − 12x + 21

0

Answers ( No )

    0
    2021-09-09T18:24:11+00:00

    ax^2+bx+c

    A=2
    B=12
    C=21

    a(x+d)^2+e

    D=b/2a

    D=12/2•2

    D=2•6/2•2

    Cancel the common factor
    Then you’ll get
    D= 6/2=3

    E= c+b^2/4a
    E=21-18
    E=3

    2(x+3)^2+3
    A=2
    H=-3
    K=3

    Answer: Vertex= (h,k)
    =(-3,3)

Leave an answer

Browse
Browse